Creating temporary tables

Hi All ,
I am new to oracle and i need to find out how can i create a temporary table in Oracle ?
in MS SQL it's "select * into #tbl1 from tblABC"
how can i do that in PL/SQL
appreciate ur advise
tks & rdgs

the reason for wanting to create temp tables isonly for a particular session and also i'll
get the columns definition directly from thesource table
You are thinking like an MSSQL coder. Creating and
dropping tables on the fly is A Bad Thing. It is
slow - any DDL is. It is risky (what happens if the
table cannot be created for any reason? what happens
if it cannot be dropped?). It may complicate our
transactional processing. It is also unnecssary,
because Oracle provides us with a mechanism - global
temporary tables - which doesn't exist in MSSQL.
So please consider what actually benefit you derive
from creating and dropping tables rather than using
global temporary tables. Also whether you need any
form of temporary table: Oracle has some nifty
features, especially in the analytic functions, that
may obviate the need for any intermediate data
manipulation when generating reports.
Cheers, APCHi ,
yes it's true that i am still thinking from an MSSQL coder's pt of view , i thank you for your explanation and i yes shld start to learn to think as an Oracle coder so as to get the best out of Oracle

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How create temporary table from list of values

Can you anybody advise me how can I create temporary table from list of values? I have list of values and need create temporary table for next use with command JOIN etc.
Thank you for help

NO, you can not create temporary table in oracle on the fly ( Like #Tabels in SQl Server or Sybase ) , you will have to use the GTT i.e Global Temporary Tables
check the following link GTT :
to flush the tables after commit
CREATE GLOBAL TEMPORARY TABLE my_temp_table (
column1 NUMBER,
column2 NUMBER
) ON COMMIT DELETE ROWS;In contrast, the ON COMMIT PRESERVE ROWS clause indicates that rows should be preserved until the end of the session.
so to keep rows in Table after commit
CREATE GLOBAL TEMPORARY TABLE my_temp_table (
column1 NUMBER,
column2 NUMBER
) ON COMMIT PRESERVE ROWS;

Is there a way to create "temporary" tables in SAP database?

Hello,
Is there a way to create temporary tables in ABAP?
Here is our scenario:
1. Invoke a custom RFC that creates a temporary table and returns the name of the table.
2. Invoke another custom RFC and pass this table name as parameter. This RFC internally does some INNER JOIN with the temporary table.
3. Invoke the third RFC to delete the temporary table.
Note that the name of the table cannot be static. We have many users using our application simultaneously and connecting to the SAP server.
I would appreciate it if you could point me in the right direction.
Thank you in advance for your help.
Peter

I just ran into a similar issue. While only calling the select statement 2 times, each time had so many entries in the 'for all entries' list, that the compiler converted this into about 700 calls to the select. Now since the select joined three real tables on the database, the trace shows this one select as being the slowest item in this application.
I think that happened because 'for all entries' gets converted to an 'IN' clause, and then the total number of characters in any SQL statement has an upper limit. So the compiler must make the select statement over and over until it covers all entries in the 'for all entries' list. Is that correct?
Since every database I ever saw has the concept of db temporary tables, I have used db temp tables many times for this sort of thing.
The ABAP compiler could determine that more than one IN statement will be need, then use an alternate: write all the FOR ALL ENTRIES to a db temp table, then join on the db temp table, then drop db temp table. Since the compiler does this sort of thing, no application code needs change to get the speed boost.

Error creating temporary table

I got this error when creating forms with ADDT. I checked MySQL reserved words and I'm sure that's not my problem :(. Any help with this?
Many thanks
Florencia
Error:
Error interno.
Developer Details:
tNG_fields.getFakeRecordset:
SQL error: Error creating temporary table:
Incorrect table name 'T'
SQL:
CREATE TEMPORARY TABLE KT_fakeRS_20071031 (fecha_ing TEXT, fecha_eg TEXT, seguro TEXT, compania TEXT, CC TEXT, T.T TEXT, chapa TEXT, pintura TEXT, mecanica TEXT, repuestos TEXT, TT TEXT, cerrado TEXT, patente TEXT, id_rep TEXT) (FIELDS_FAKE_RS_ERROR)
tNG Execution Trace - VIEW

Hi Florencia,
a column name like "T.T" will always lead to such errors, because characters like a dot (.) are forbidden, so to speak -- MySQL table and column names may generally only contain alphanumeric characters (0-9, a-z, A-Z), and the only allowed separator would be an underscore (_)
Cheers,
Günter Schenk
Adobe Community Expert, Dreamweaver

Create Temporary Tables

Hi, there.
Can anybody tell me what's the syntax for the SQL statements to create temporary tables?
I'm developing a shopping cart, and at the end of every purchase (checkout) I want to organize the items of the Session Bean Hash Table that contains them, and group them by category, brand, price and show the serial number of each item. I was thinking to do SQL-style operations like GROUP BY on the Hash Table itself, but I am having a hard time with it, so that's why I thought that filling a temporary database table with the Hash Table data could be the solution to the problem of grouping and ordering the items contained in the Shopping cart Bean.
I saw the following code in this same forum:
stmt = con.createStatement();
stmt.executeUpdate("create table temp (slno integer, first_name varchar(32), middle_name varchar(1), last_name varchar(32))");
But I don't understand how the temporary table has a fixed name, isn't that going to create conflict with another user that creates a temporary table with the same name but in a different session?
I hope my approach makes sense. If so, what's the SQL syntax to create temporary-session-like tables so I can include it in my JDBC code?
Thank you in advance for any information or alternative suggestion.

But I don't understand how the temporary table has a
fixed name, isn't that going to create conflict with
another user that creates a temporary table with the
same name but in a different session?Yes, it is. That's one reason why people try to avoid creating temporary tables, I suppose. There are other reasons.
I hope my approach makes sense. If so, what's the SQL
syntax to create temporary-session-like tables so I
can include it in my JDBC code?You already know the syntax for creating a table. Your only problem is finding a unique name for the table, one that no other user will use. You could have a one-row one-column table with a number in it, which you read and increment, then use that number for your table name, for example. Unless your database happens to have this as a feature -- you would have to read its documentation to find that out.
However as I implied before, you should try to avoid creating temporary tables. Creating a table is a time-consuming operation, and if your program ends abnormally without dropping the temporary table, your database slowly fills up with useless tables.

Create Temporary table

Dear All
Am using SAP B1 pl-40
SQL Server 2005
through Query manager if i create Temporary table it will make any
problem?
The following Example are am going to use
create table ##baz
CarIndex smallint,
CarType varchar(20),
cardcode varchar(20)
insert into ##baz values('1','2','3')
select * from ##baz
drop table ##baz

You'll not have any problems in Creating/ Inserting to your own created tables(without which you cannot develop an Add-on).
You are not supposed to Insert or Delete into SAP tables using direct Insert/ Update/ Delete statements.
Please Check this SAP Note: 896891 Support Scope for SAP Business One - DB Integrity
[https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/smb_searchnotes/display.htm?note_langu=E&note_numm=896891]

Creating temporary tables with JSTL

I need to create temporary tables in my DB (MySQL), and later call it in a query.
I try this:
<sql:update var="temp1" dataSource="${conn}">
CREATE TEMPORARY TABLE temp1
SELECT data1 FROM table1 WHERE condition = 1
</sql:update>
<sql:query var="query1" dataSource="${conn}">
SELECT * FROM temp1
</sql:query>

I haven't done enough with MySQL recently to know.
Break your problem up into two parts.
First there's the query portion. Create a permanent table and make sure that your query works fine with taht.
Next is the creation of the temporary table. Once you KNOW the query is working, then you can concentrate on that.
I'll assume that you've already GRANTed table creation permission to the user that your JSP app uses to log into the database.
Are there any messages written to the servlet/JSP engine log file that might help you figure out what's wrong? Do you have a JSP error page that's displayed if any exceptions are thrown? - MOD

Cannot create temporary table having identity column

Hi experts,
I saw the above error msg while running the following statement:
     create local temporary column table #tmp_table (c1 int GENERATED by default AS IDENTITY (start with 1 increment by 1), c2 int)
     Could not execute 'create local temporary column table #tmp_table(c1 int GENERATED by default AS IDENTITY (start with ...'
     SAP DBTech JDBC: [7]: feature not supported: cannot create temporary table having identity column: C1: line 1 col 48 (at pos 47)
I understand we can support normal column table creation with identity column, but don't know why cannot support temporary column tables with identity column. Is there any configuration that can enable it for temporary column table? Or what can I do to support it indirectly, like writing a trigger to support it or something else?
If not, then is there any future plan for this feature?
Regards,
Hubery

Hi Hubery,
I've heard this trail of arguments before...
Customer has a solution... they want it on HANA... but they don't want to change the solution.
Well, fair call, I'd say.
The problem here is: there's a mix-up of solution and implementation here.
It should be clear now, that changing DBMS systems (in any direction) will require some effort in changing the implementation. Every DBMS works a bit different than the others, given "standard" SQL or not.
So I don't agree with the notion of "we cannot change the implementation".
In fact, you will have to change the implementation anyhow.
Rather than imitating the existing solution implementation on ASE, implement it on SAP HANA.
Filling up tons of temporary tables is not a great idea in SAP HANA - you would rather try to create calculation views that present the data ad hoc in the desired way.
That's my 2 cts on that.
- Lars

Create temporary Tables using SQL

Hello,
I'm wondering if SAP allows the creation of new Tables without SDK objects,
I want to create temporary tables using SQL scripts an compile them when an specific addon is connected and erase them when the addon disconnects,
Do you think this is allowed?.
thanks,
Gabriela

You could always have a second DB to create your temp tables in. This is the way I've done this, as well as created my own views and stored procedures in it. No updating of the primary table necessary. The way I named things was:
Company_DB - Company Database
Company_DB-Extern - My own stuff
Then, in sap, you can just do [Company_DB-Extern]..Object to call it, or you do the same from withing your project.

Create temporary table as

Hi every body!
Can I use follow statement:
"Create global temporary table AAA as select * from other table " to create temporary table ?
Thank you very much.

here it goes
SQL> Select *
2 From a1;
N
1
3
1
SQL>
SQL> create global temporary table temp_a3
2 on commit preserve Rows
3 As Select * From a1
4 /
Table created
SQL> Select * From temp_a3;
N
1
3
1regards
nic

PL/SQL block to create temporary table + load via cursor for loop

Assume I have a table that contains a subset of data that I want to load into a temporary table within a cursor for-loop. Is it possible to have a single statement to create the table and load based on the results of the fetch?
I was thinking something like:
Declare CURSOR xyz is
CREATE TABLE temp_table as
select name, rank, serial number from
HR table where rank = 'CAPTAIN'
BEGIN
OPEN xyz
for name in xyz
LOOP
END LOOP
What I see wrong with this is that the table would be created multiple times which is why this syntax is not acceptable. I'd prefer not to have to define the temporary table then load in two sepearte SQL statements and am hoping a single statement can be used.
Thanks!

What is the goal here?
If you're just going to iterate over the rows that are returned in a cursor, a temporary table is unnecessary and only adds complexity. If you truly need a temporary table, you would declare it exactly once, at install time when you create all your other tables. You'd INSERT data into the temp table and the data would only be visible to the session that inserted it.
Justin

CREATE TEMPORARY TABLE USING EXECUTE IMMEDIATE

Hi All,
i have a question,
how can i create a temporary table using EXECUTE IMMEDIATE ??
Like:
CREATE GLOBAL TEMPORARY table new_table as (Select * from old_table);
Thanks,
Edited by: xDeviates on Jun 11, 2012 3:13 PM

It looks like you are approaching the problem incorrectly. As I suggested in Dynamic Select, it sounds like you, at most, want a function that returns a SYS_REFCURSOR (it's still not obvious to me why you would even want/ need to resort to dynamic SQL in the first place)
CREATE OR REPLACE FUNCTION get_dynamic_cursor( p_table_name IN VARCHAR2 )
RETURN sys_refcursor
IS
l_rc sys_refcursor;
BEGIN
OPEN l_rc FOR 'SELECT * FROM ' || dbms_assert.sql_object_name( p_table_name );
RETURN l_rc;
END;which you can then call from your application
SQL> variable rc refcursor;
SQL> exec :rc := get_dynamic_cursor( 'EMP' );
PL/SQL procedure successfully completed.
SQL> print rc
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM
    DEPTNO
      7369 SMITH      CLERK           7902 17-DEC-80        801
        20
      7499 ALLEN      SALESMAN        7698 20-FEB-81       1601        300
        30
      7521 WARD       SALESMAN        7698 22-FEB-81       1251        500
        30
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM
    DEPTNO
      7566 JONES      MANAGER         7839 02-APR-81       2976
        20
      7654 MARTIN     SALESMAN        7698 28-SEP-81       1251       1400
        30
      7698 BLAKE      MANAGER         7839 01-MAY-81       2851
        30
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM
    DEPTNO
      7782 CLARK      MANAGER         7839 09-JUN-81       2451
        10
      7788 SCOTT      ANALYST         7566 19-APR-87       3001
        20
      7839 KING       PRESIDENT            17-NOV-81       5001
        10
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM
    DEPTNO
      7844 TURNER     SALESMAN        7698 08-SEP-81       1501          0
        30
      7876 ADAMS      CLERK           7788 23-MAY-87       1101
        20
      7900 JAMES      CLERK           7698 03-DEC-81        951
        30
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM
    DEPTNO
      7902 FORD       ANALYST         7566 03-DEC-81       3001
        20
      7934 MILLER     CLERK           7782 23-JAN-82       1301
        10
14 rows selected.Justin

Creating temporary table in pl/sql block problem

hello
i have a problem in creating and using temporary table in pl/sql block
please verify below block
begin
execute immediate 'create global temporary table alitemp1 (co_t varchar2(10),color varchar2(10))';
insert into alitemp1 (co_t,color) values ('001','red');
execute immediate 'DROP TABLE alitemp1';
end;
when i execute that block i will receive this error
insert into alitemp1 (co_t,color) values ('001','red');
ERROR at line 3:
ORA-06550: line 3, column 14:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 3, column 2:
PL/SQL: SQL Statement ignored
i think it because that alitemp1 table don't create
but two below block run fine
begin
execute immediate 'create global temporary table alitemp1 (co_t varchar2(10),color varchar2(10))';
execute immediate 'DROP TABLE alitemp1';
end;
begin
execute immediate 'create global temporary table alitemp1 (co_t varchar2(10),color varchar2(10))';
end;
select table_name from user_tables where table_name='ALITEMP1';
TABLE_NAME
ALITEMP1
it means that problem is when the below line exists in block
insert into alitemp1 (co_t,color) values ('001','red');
if may please guide me

In addition to the comments by Justin and 3360, you cannot do what you want the way you are doing it.
All objects referred to in a PL/SQL block must exist at the time the block is compiled. In your case, since it is an anonomous block, that is run time. Since you are dynamically creating the temporary table you need to refer to it dynamically as well. More like:
BEGIN
EXECUTE IMMEDIATE 'create global temporary table alitemp1 (co_t varchar2(10),
color varchar2(10))';
EXECUTE IMMEDIATE 'insert into alitemp1 (co_t,color) values (:b1,:b2)' USING '001', 'red';
EXECUTE IMMEDIATE 'DROP TABLE alitemp1';
END;However, don't do that it is a really bad idea. Just create the temporary table, if you really need it, once and use it in your processing.
In most cases, things that SQL Server needs temporary tables for can be done easily in Oracle with a single SQL statement,
John

Create temporary table to physical table.

i have created one physical table using temporary table. columns are like this create hi table as(no number, name varchar2(20), da date));
again do some transaction in my DB i need insert the temporary table values to physical table IF the no,name,date is same add the values into table.

What is your 4 digit Oracle version?
You can use a MERGE to do that
MERGE INTO permTable P
   USING (SELECT a, b, c FROM tempTable) T
   ON (P.no = T.no AND P.name = T.name AND P.da = T.da)
   WHEN MATCHED THEN UPDATE SET P.a = T.a, P.b = T.b, P.c = T.c;See Merging into a Table: Example at the end of the MERGE section in the SQL Reference
http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9016.htm

Giving grant for creating temporary table only

hi...
i want to give grant for creating only temporary tables to a schema.
no other grants should not be there strictly...
I have created the following user widout any grants...plss suggest me how can i give the grants for creating only temporary tables..
create user user_name
identified by password
default tablespace table_space
temporary tablespace TEMP
profile DEFAULT
quota unlimited on table_space;
grant select on V_$SESSION to user_name;
thanks...
Edited by: user12780416 on Mar 25, 2011 8:32 AM

As has been pointed out, it would be **extremely** unusual to want to have a user that could create global temporary tables but not permanent tables. I'm very hard-pressed to imagine a scenario where that would make sense.
However, if you grant the user the CREATE TABLE privilege but do not grant the user quota on any permanent tablespace, they would be unable to create permanent tables but should be able to create global temporary tables. You'll have to make sure that you don't grant the user UNLIMITED TABLESPACE which would give them unlimited quota on all tablespaces. If you are using 11g and you have enabled deferred segment creation, the users would actually be able to create tables in tablespaces they have no quota on though they would not be able to insert any data in those tables.
Justin

Creating temporary tables

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