Static Tables Creation In oracle & Diff Between Static table ,Dynamic table

Static Tables Creation In oracle & Diff Between Static table ,Dynamic table

972471 wrote:
Static Tables Creation In oracle & Diff Between Static table ,Dynamic tableAll tables in a well designed application should be static tables.
Whilst it's possible to execute dynamic code and therefore create tables dynamically at run time, this is considered poor design and should be avoided in 99.99% of cases... though for some reason some people still think they need to do this, and it's never really justified.
So what issue are you facing that you need to even bother considering dynamic tables?

Similar Messages

  • Table creation in Oracle back end

    Hi Gurus,
    Can we create a oracle table in SAP schema directly from back-end and update it by taking snapshot from other oracle system.
    I know its not a recommended solution and DB link / DBCon would be better solution but the problem is other oracle system is not ready to give us access/userID to connect to it using DBlink.
    Can we access the table create above using native SQL statement or can we create a synonym to a ztable created using se11.
    Thanks in advanced.
    Sumit

    Hi Bill,
         Thanks for the reply. Please check below.
    My DTData.txt:
    My Agentry.ini file:
    My File back end log file:
    --In editor I added a new system connection with "File Back end", created new data table with this system connection and created DTData.txt as file name.
    --Created "Tables" folder in ServerDev root directory and placed DTData.txt file in this folder and entered the above 1st screen shot text.
    --In my ATE i couldn't see this filedatatable.
    Thanks,
    Swaroopa.

  • Credit Management: Difference Between Static and Dynamic Credit Check

    Hi,
    Could anyone tell the difference Between Static and Dynamic Credit Check?
    According to website: http://www.sap-basis-abap.com/sd/difference-between-static-and-dynamic-credit-check.htm ... this is the answer:
    ====================
    Simple Credit Check : Tr.Code - FD32
    It Considers the Doc.Value + Open Items.
    Doc.Value : Sales Order Has been saved but not delivered
    Open Item : Sales Order has been saved , Delivered, Billed & Transfered to FI, but not received the payment from the customer.
    Static Credit Check it checks all these doc value & check with the credit limit
    1) Open Doc.Value / Sales Order Value : Which is save but not delievered
    2) Open Delivery Doc.Value : Which is delivered but not billed
    3) Open Billing Doc.Value : Which is billed but not posted to FI
    4) Open Item : Which is transfered to FI but not received from the customer.
    Dynamic Credit Check         1) Open Doc
                                                2) Open Delivery
                                                3) Open Billing
                                                4) Open Items
                                                5) Horizon Period = Eg.3Months
    Here the System will not consider the above 1, 2, 3 & 4 values for the lost 3 months.    
    ====================
    Question 1: Could you further explain the above information, if there is any?
    Question 2:: What is the Tcode to customize settings of:
    a) Simple Credit Check (isn't this same with b) below?)
    b) Static Credit Check
    c) Dynamic Credit Check

    Hi Tanish,
    Diff between Static and Dynamic Filters.
    Example One at report Level.
    Create a variable for a Infoobject say ,Material .
    1)In the Query Designer and if u restrict it to some 10 materials at query level, the report will display for only those 10 materials only.This is Static Filter.UR AHrdcoding it to those materials.You cant change them at Query Run time.i.e not changeable by user.
    2)If u give the variable as input ,and when u run the query ,u can can choose the material,may 10 may be 1 or may 20 .It is dynamic.Changeable by user at run time
    Example Two at DTP and Start Routine Level,say Document Type.
    1)If u give filters in Start routine it is Static as u cannot change it in Production,not changeable by user.
    2)f u give filters in DTP it is Dyanamic as u can change it in Production.U can give any doc type,Changeable by user at run time.
    Hope it is Understood.
    Rgds
    SVU

  • Error while insert data using execute immediate in dynamic table in oracle

    Error while insert data using execute immediate in dynamic table created in oracle 11g .
    first the dynamic nested table (op_sample) was created using the executed immediate...
    object is
    CREATE OR REPLACE TYPE ASI.sub_mark AS OBJECT (
    mark1 number,
    mark2 number
    t_sub_mark is a class of type sub_mark
    CREATE OR REPLACE TYPE ASI.t_sub_mark is table of sub_mark;
    create table sam1(id number,name varchar2(30));
    nested table is created below:
    begin
    EXECUTE IMMEDIATE ' create table '||op_sample||'
    (id number,name varchar2(30),subject_obj t_sub_mark) nested table subject_obj store as nest_tab return as value';
    end;
    now data from sam1 table and object (subject_obj) are inserted into the dynamic table
    declare
    subject_obj t_sub_mark;
    begin
    subject_obj:= t_sub_mark();
    EXECUTE IMMEDIATE 'insert into op_sample (select id,name,subject_obj from sam1) ';
    end;
    and got the below error:
    ORA-00904: "SUBJECT_OBJ": invalid identifier
    ORA-06512: at line 7
    then when we tried to insert the data into the dynam_table with the subject_marks object as null,we received the following error..
    execute immediate 'insert into '||dynam_table ||'
    (SELECT

    887684 wrote:
    ORA-00904: "SUBJECT_OBJ": invalid identifier
    ORA-06512: at line 7The problem is that your variable subject_obj is not in scope inside the dynamic SQL you are building. The SQL engine does not know your PL/SQL variable, so it tries to find a column named SUBJECT_OBJ in your SAM1 table.
    If you need to use dynamic SQL for this, then you must bind the variable. Something like this:
    EXECUTE IMMEDIATE 'insert into op_sample (select id,name,:bind_subject_obj from sam1) ' USING subject_obj;Alternatively you might figure out to use static SQL rather than dynamic SQL (if possible for your project.) In static SQL the PL/SQL engine binds the variables for you automatically.

  • Slow table creation after upgrade from 10.2.0.3 to 11.2.0.1 using DBUA

    I've recently completed a database upgrade from 10.2.0.3 to 11.2.0.1 using the DBUA.
    I've since encountered a slowdown when running a script which drops and recreates a series of ~250 tables. The script normally runs in around 19 seconds. After the upgrade, the script requires ~2 minutes to run.
    By chance has anyone encountered something similar?
    The problem may be related to the behavior of an "after CREATE on schema" trigger which grants select privileges to a role through the use of a dbms_job call; between 10g and the database that was upgraded from 10G to 11g. Currently researching this angle.
    I will be using the following table creation DDL for this abbreviated test case:
    create table ALLIANCE  (
       ALLIANCEID           NUMBER(10)                      not null,
       NAME                 VARCHAR2(40)                    not null,
       CREATION_DATE        DATE,
       constraint PK_ALLIANCE primary key (ALLIANCEID)
               using index
           tablespace LIVE_INDEX
    tablespace LIVE_DATA;When calling the above DDL, an "after CREATE on schema" trigger is fired which schedules a job to immediately run to grant select privilege to a role for the table which was just created:
    create or replace
    trigger select_grant
    after CREATE on schema
    declare
        l_str varchar2(255);
        l_job number;
    begin
        if ( ora_dict_obj_type = 'TABLE' ) then
            l_str := 'execute immediate "grant select on ' ||
                                         ora_dict_obj_name ||
                                        ' to select_role";';
            dbms_job.submit( l_job, replace(l_str,'"','''') );
        end if;
    end;
    {code}
    Below I've included data on two separate test runs.  The first is on the upgraded database and includes optimizer parameters and an abbreviated TKPROF.  I've also, included the offending sys generate SQL which is not issued when the same test is run on a 10g environment that has been set up with a similar test case.  The 10g test run's TKPROF is also included below.
    The version of the database is 11.2.0.1.
    These are the parameters relevant to the optimizer for the test run on the upgraded 11g SID:
    {code}
    SQL> show parameter optimizer
    NAME                                 TYPE        VALUE
    optimizer_capture_sql_plan_baselines boolean     FALSE
    optimizer_dynamic_sampling           integer     2
    optimizer_features_enable            string      11.2.0.1
    optimizer_index_caching              integer     0
    optimizer_index_cost_adj             integer     100
    optimizer_mode                       string      ALL_ROWS
    optimizer_secure_view_merging        boolean     TRUE
    optimizer_use_invisible_indexes      boolean     FALSE
    optimizer_use_pending_statistics     boolean     FALSE
    optimizer_use_sql_plan_baselines     boolean     TRUE
    SQL> show parameter db_file_multi
    NAME                                 TYPE        VALUE
    db_file_multiblock_read_count        integer     8
    SQL> show parameter db_block_size
    NAME                                 TYPE        VALUE
    db_block_size                        integer     8192
    SQL> show parameter cursor_sharing
    NAME                                 TYPE        VALUE
    cursor_sharing                       string      EXACT
    SQL> column sname format a20
    SQL> column pname format a20
    SQL> column pval2 format a20
    SQL> select sname, pname, pval1, pval2 from sys.aux_stats$;
    SNAME                PNAME                     PVAL1 PVAL2
    SYSSTATS_INFO        STATUS                          COMPLETED
    SYSSTATS_INFO        DSTART                          03-11-2010 16:33
    SYSSTATS_INFO        DSTOP                           03-11-2010 17:03
    SYSSTATS_INFO        FLAGS                         0
    SYSSTATS_MAIN        CPUSPEEDNW           713.978495
    SYSSTATS_MAIN        IOSEEKTIM                    10
    SYSSTATS_MAIN        IOTFRSPEED                 4096
    SYSSTATS_MAIN        SREADTIM               1565.746
    SYSSTATS_MAIN        MREADTIM
    SYSSTATS_MAIN        CPUSPEED                   2310
    SYSSTATS_MAIN        MBRC
    SYSSTATS_MAIN        MAXTHR
    SYSSTATS_MAIN        SLAVETHR
    13 rows selected.
    {code}
    Output from TKPROF on the 11g SID:
    {code}
    create table ALLIANCE  (
       ALLIANCEID           NUMBER(10)                      not null,
       NAME                 VARCHAR2(40)                    not null,
       CREATION_DATE        DATE,
       constraint PK_ALLIANCE primary key (ALLIANCEID)
               using index
           tablespace LIVE_INDEX
    tablespace LIVE_DATA
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.00          0          0          0           0
    Execute      1      0.00       0.00          0          0          4           0
    Fetch        0      0.00       0.00          0          0          0           0
    total        2      0.00       0.00          0          0          4           0
    Misses in library cache during parse: 1
    Optimizer mode: ALL_ROWS
    Parsing user id: 324
    {code}
    ... large section omitted ...
    Here is the performance hit portion of the TKPROF on the 11g SID:
    {code}
    SQL ID: fsbqktj5vw6n9
    Plan Hash: 1443566277
    select next_run_date, obj#, run_job, sch_job
    from
    (select decode(bitand(a.flags, 16384), 0, a.next_run_date,
      a.last_enabled_time) next_run_date,       a.obj# obj#,
      decode(bitand(a.flags, 16384), 0, 0, 1) run_job, a.sch_job  sch_job  from
      (select p.obj# obj#, p.flags flags, p.next_run_date next_run_date,
      p.job_status job_status, p.class_oid class_oid,      p.last_enabled_time
      last_enabled_time, p.instance_id instance_id,      1 sch_job   from
      sys.scheduler$_job p   where bitand(p.job_status, 3) = 1    and
      ((bitand(p.flags, 134217728 + 268435456) = 0) or
      (bitand(p.job_status, 1024) <> 0))    and bitand(p.flags, 4096) = 0    and
      p.instance_id is NULL    and (p.class_oid is null      or (p.class_oid is
      not null      and p.class_oid in (select b.obj# from sys.scheduler$_class b
                               where b.affinity is null)))   UNION ALL   select
      q.obj#, q.flags, q.next_run_date, q.job_status, q.class_oid,
      q.last_enabled_time, q.instance_id, 1   from sys.scheduler$_lightweight_job
      q   where bitand(q.job_status, 3) = 1    and ((bitand(q.flags, 134217728 +
      268435456) = 0) or         (bitand(q.job_status, 1024) <> 0))    and
      bitand(q.flags, 4096) = 0    and q.instance_id is NULL    and (q.class_oid
      is null      or (q.class_oid is not null      and q.class_oid in (select
      c.obj# from sys.scheduler$_class c                          where
      c.affinity is null)))   UNION ALL   select j.job, 0,
      from_tz(cast(j.next_date as timestamp),      to_char(systimestamp,'TZH:TZM')
      ), 1, NULL,      from_tz(cast(j.next_date as timestamp),
      to_char(systimestamp,'TZH:TZM')),     NULL, 0   from sys.job$ j   where
      (j.field1 is null or j.field1 = 0)    and j.this_date is null) a   order by
      1)   where rownum = 1
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.00          0          0          0           0
    Execute      1      0.00       0.00          0          0          0           0
    Fetch        1      0.47       0.47          0       9384          0           1
    total        3      0.48       0.48          0       9384          0           1
    Misses in library cache during parse: 1
    Optimizer mode: CHOOSE
    Parsing user id: SYS   (recursive depth: 1)
    Rows     Row Source Operation
          1  COUNT STOPKEY (cr=9384 pr=0 pw=0 time=0 us)
          1   VIEW  (cr=9384 pr=0 pw=0 time=0 us cost=5344 size=6615380 card=194570)
          1    SORT ORDER BY STOPKEY (cr=9384 pr=0 pw=0 time=0 us cost=5344 size=11479630 card=194570)
    194790     VIEW  (cr=9384 pr=0 pw=0 time=537269 us cost=2563 size=11479630 card=194570)
    194790      UNION-ALL  (cr=9384 pr=0 pw=0 time=439235 us)
        231       FILTER  (cr=68 pr=0 pw=0 time=920 us)
        231        TABLE ACCESS FULL SCHEDULER$_JOB (cr=66 pr=0 pw=0 time=690 us cost=19 size=13157 card=223)
          1        TABLE ACCESS BY INDEX ROWID SCHEDULER$_CLASS (cr=2 pr=0 pw=0 time=0 us cost=1 size=40 card=1)
          1         INDEX UNIQUE SCAN SCHEDULER$_CLASS_PK (cr=1 pr=0 pw=0 time=0 us cost=0 size=0 card=1)(object id 5056)
          0       FILTER  (cr=3 pr=0 pw=0 time=0 us)
          0        TABLE ACCESS FULL SCHEDULER$_LIGHTWEIGHT_JOB (cr=3 pr=0 pw=0 time=0 us cost=2 size=95 card=1)
          0        TABLE ACCESS BY INDEX ROWID SCHEDULER$_CLASS (cr=0 pr=0 pw=0 time=0 us cost=1 size=40 card=1)
          0         INDEX UNIQUE SCAN SCHEDULER$_CLASS_PK (cr=0 pr=0 pw=0 time=0 us cost=0 size=0 card=1)(object id 5056)
    194559       TABLE ACCESS FULL JOB$ (cr=9313 pr=0 pw=0 time=167294 us cost=2542 size=2529254 card=194558)
    {code}
    and the totals at the end of the TKPROF on the 11g SID:
    {code}
    OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.00          0          0          0           0
    Execute      2      0.00       0.00          0          0          4           0
    Fetch        0      0.00       0.00          0          0          0           0
    total        3      0.00       0.00          0          0          4           0
    Misses in library cache during parse: 1
    Misses in library cache during execute: 1
    OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
    call     count       cpu    elapsed       disk      query    current        rows
    Parse       70      0.00       0.00          0          0          0           0
    Execute     85      0.01       0.01          0         62        208          37
    Fetch       49      0.48       0.49          0       9490          0          35
    total      204      0.51       0.51          0       9552        208          72
    Misses in library cache during parse: 5
    Misses in library cache during execute: 3
       35  user  SQL statements in session.
       53  internal SQL statements in session.
       88  SQL statements in session.
    Trace file: 11gSID_ora_17721.trc
    Trace file compatibility: 11.1.0.7
    Sort options: default
           1  session in tracefile.
          35  user  SQL statements in trace file.
          53  internal SQL statements in trace file.
          88  SQL statements in trace file.
          51  unique SQL statements in trace file.
        1590  lines in trace file.
          18  elapsed seconds in trace file.
    {code}
    The version of the database is 10.2.0.3.0.
    These are the parameters relevant to the optimizer for the test run on the 10g SID:
    {code}
    SQL> show parameter optimizer
    NAME                                 TYPE        VALUE
    optimizer_dynamic_sampling           integer     2
    optimizer_features_enable            string      10.2.0.3
    optimizer_index_caching              integer     0
    optimizer_index_cost_adj             integer     100
    optimizer_mode                       string      ALL_ROWS
    optimizer_secure_view_merging        boolean     TRUE
    SQL> show parameter db_file_multi
    NAME                                 TYPE        VALUE
    db_file_multiblock_read_count        integer     8
    SQL> show parameter db_block_size
    NAME                                 TYPE        VALUE
    db_block_size                        integer     8192
    SQL> show parameter cursor_sharing
    NAME                                 TYPE        VALUE
    cursor_sharing                       string      EXACT
    SQL> column sname format a20
    SQL> column pname format a20
    SQL> column pval2 format a20
    SQL> select sname, pname, pval1, pval2 from sys.aux_stats$;
    SNAME                PNAME                     PVAL1 PVAL2
    SYSSTATS_INFO        STATUS                          COMPLETED
    SYSSTATS_INFO        DSTART                          09-24-2007 11:09
    SYSSTATS_INFO        DSTOP                           09-24-2007 11:09
    SYSSTATS_INFO        FLAGS                         1
    SYSSTATS_MAIN        CPUSPEEDNW           2110.16949
    SYSSTATS_MAIN        IOSEEKTIM                    10
    SYSSTATS_MAIN        IOTFRSPEED                 4096
    SYSSTATS_MAIN        SREADTIM
    SYSSTATS_MAIN        MREADTIM
    SYSSTATS_MAIN        CPUSPEED
    SYSSTATS_MAIN        MBRC
    SYSSTATS_MAIN        MAXTHR
    SYSSTATS_MAIN        SLAVETHR
    13 rows selected.
    {code}
    Now for the TKPROF of a mirrored test environment running on a 10G SID:
    {code}
    create table ALLIANCE  (
       ALLIANCEID           NUMBER(10)                      not null,
       NAME                 VARCHAR2(40)                    not null,
       CREATION_DATE        DATE,
       constraint PK_ALLIANCE primary key (ALLIANCEID)
               using index
           tablespace LIVE_INDEX
    tablespace LIVE_DATA
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.00          0          0          0           0
    Execute      1      0.00       0.01          0          2         16           0
    Fetch        0      0.00       0.00          0          0          0           0
    total        2      0.01       0.01          0          2         16           0
    Misses in library cache during parse: 1
    Optimizer mode: ALL_ROWS
    Parsing user id: 113
    {code}
    ... large section omitted ...
    Totals for the TKPROF on the 10g SID:
    {code}
    OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
    call     count       cpu    elapsed       disk      query    current        rows
    Parse        1      0.00       0.02          0          0          0           0
    Execute      1      0.00       0.00          0          2         16           0
    Fetch        0      0.00       0.00          0          0          0           0
    total        2      0.00       0.02          0          2         16           0
    Misses in library cache during parse: 1
    OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
    call     count       cpu    elapsed       disk      query    current        rows
    Parse       65      0.01       0.01          0          1         32           0
    Execute     84      0.04       0.09         20         90        272          35
    Fetch       88      0.00       0.10         30        281          0          64
    total      237      0.07       0.21         50        372        304          99
    Misses in library cache during parse: 38
    Misses in library cache during execute: 32
       10  user  SQL statements in session.
       76  internal SQL statements in session.
       86  SQL statements in session.
    Trace file: 10gSID_ora_32003.trc
    Trace file compatibility: 10.01.00
    Sort options: default
           1  session in tracefile.
          10  user  SQL statements in trace file.
          76  internal SQL statements in trace file.
          86  SQL statements in trace file.
          43  unique SQL statements in trace file.
         949  lines in trace file.
           0  elapsed seconds in trace file.
    {code}
    Edited by: user8598842 on Mar 11, 2010 5:08 PM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

    So while this certainly isn't the most elegant of solutions, and most assuredly isn't in the realm of supported by Oracle...
    I've used the DBMS_IJOB.DROP_USER_JOBS('username'); package to remove the 194558 orphaned job entries from the job$ table. Don't ask, I've no clue how they all got there; but I've prepared some evil looks to unleash upon certain developers tomorrow morning.
    Not being able to reorganize the JOB$ table to free the now wasted ~67MB of space I've opted to create a new index on the JOB$ table to sidestep the full table scan.
    CREATE INDEX SYS.JOB_F1_THIS_NEXT ON SYS.JOB$ (FIELD1, THIS_DATE, NEXT_DATE) TABLESPACE SYSTEM;The next option would be to try to find a way to grant the select privilege to the role without using the aforementioned "after CREATE on schema" trigger and dbms_job call. This method was adopted to cover situations in which a developer manually added a table directly to the database rather than using the provided scripts to recreate their test environment.
    I assume that the following quote from the 11gR2 documentation is mistaken, and there is no such beast as "create or replace table" in 11g:
    http://download.oracle.com/docs/cd/E11882_01/server.112/e10592/statements_9003.htm#i2061306
    "Dropping a table invalidates dependent objects and removes object privileges on the table. If you want to re-create the table, then you must regrant object privileges on the table, re-create the indexes, integrity constraints, and triggers for the table, and respecify its storage parameters. Truncating and replacing have none of these effects. Therefore, removing rows with the TRUNCATE statement or replacing the table with a *CREATE OR REPLACE TABLE* statement can be more efficient than dropping and re-creating a table."

  • Table creation - order of events

    I am trying to get some help on the order I should be carrying out table creation tasks.
    Say I create a simple table:
    create table title (
    title_id number(2) not null,
    title varchar2(10) not null,
    effective_from date not null,
    effective_to date not null,
    constraint pk_title primary key (title_id)
    I believe I should populate the data, then create my index:
    create unique index title_title_id_idx on title (title_id asc)
    But I have read that Oracle will automatically create an index for my primary key if I do not do so myself.
    At what point does Oracle create the index on my behalf and how do I stop it?
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