Query with 'different from' clause in Sqlite

My question is very simple:
How can I submit a query with a 'different from' clause into a table.
In AIR, I would like to query :
"select * from myTable where myField <> 'value' ";
but it does'nt work !
Nor
"select * from myTable where myField != 'value' ";
nor
"select * from myTable where myField is not 'value' ";
is it impossible to query with a 'different from' clause in Sqlite wih Adobe Air

Hello,
SQLite in AIR does support 'different from' and '<>' is the correct operator. Take the following emp table for example:
id
name
age
1
A
26
2
B
30
3
C
28
If you want to query the records whose name isn't A. The following SQL is correct:
select * from emp where name <> 'A'
Thanks,
Yang

Similar Messages

Need help with writing a query with dynamic FROM clause

Hi Folks,
I need help with an query that should generate the "FROM" clause dynamically.
My main query is as follows
select DT_SKEY, count(*)
from *???*
where DT_SKEY between 20110601 and 20110719
group by DT_SKEY
having count(*) = 0
order by 1; The "from" clause of the above query should be generated as below
select 'Schema_Name'||'.'||TABLE_NAME
from dba_tables
where OWNER = 'Schema_Name'Simply sticking the later query in the first query does not work.
Any pointers will be appreciated.
Thanks
rogers42

Hi,
rogers42 wrote:
Hi Folks,
I need help with an query that should generate the "FROM" clause dynamically.
My main query is as follows
select DT_SKEY, count(*)
from *???*
where DT_SKEY between 20110601 and 20110719
group by DT_SKEY
having count(*) = 0
order by 1; The "from" clause of the above query should be generated as below
select 'Schema_Name'||'.'||TABLE_NAME
from dba_tables
where OWNER = 'Schema_Name'
Remember that anything inside quotes is case-sensitive. Is the owner really "Schema_Name" with a capital S and a capital N, and 8 lower-case letters?
Simply sticking the later query in the first query does not work.Right; the table name must be given when you compile the query. It's not an expression that you can generate in the query itself.
Any pointers will be appreciated.In SQL*Plus, you can do something like the query bleow.
Say you want to count the rows in scott.emp, but you're not certain that the name is emp; it could be emp_2011 or emp_august, or anything else that starts with e. (And the name could change every day, so you can't just look it up now and hard-code it in a query that you want to run in the future.)
Typically, how dynamic SQL works is that some code (such as a preliminary query) gets some of the information you need to write the query first, and you use that information in a SQL statement that is compiled and run after that. For example:
-- Preliminary Query:
COLUMN     my_table_name_col     NEW_VALUE my_table_name
SELECT     table_name     AS my_table_name_col
FROM     all_tables
WHERE     owner          = 'SCOTT'
AND     table_name     LIKE 'E%';
-- Main Query:
SELECT     COUNT (*)     AS cnt
FROM     scott.&my_table_name
;This assumes that the preliminary query will find exactly one row; that is, it assumes that SCOTT has exactly one table whose name starts with E. Could you have 0 tables in the schema, or more than 1? If so, what results would you want? Give a concrete example, preferably suing commonly available tables (like those in the SCOTT schema) so that the poepl who want to help you can re-create the problem and test their ideas.
Edited by: Frank Kulash on Aug 11, 2011 2:30 PM

Use plan from stored_outlines from query with different syntax?

Hello,
I'd like to know is there any ability to use via stored_outlines plan from query with different syntax?
Database version - 11.1.06
If yes, maybe you'll take a look at steps (based on Metalink 726802.1), what I tried to do to make it work (with no success):
alter session set create_stored_outlines=good;
run good query
create private outline good from SYS_OUTLINE_0... -< GOOD
alter session set create_stored_outlines=bad;
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update ol$ set sql_text, textlen, signature, hash_value, hash_value2 from BAD to GOOD records
leave ol$hintcount for GOOD untouched
delete ol$ where ol_name='BAD';
delete ol$hints where ol_name='BAD';
delete ol$nodes where ol_name='BAD';
execute dbms_outln_edit.refresh_private_outline('GOOD');
alter session set sql_trace=true;
alter session set use_private_outlines=true;
run bad query
examine trace file and find that it use execution plan different from both bad and good queries
PS: Originally bad query is posted already Re: Poor performance while join of 2 comprehensive large views and small table
PPS: Also I review thread CBO not picking correct indexes or doing Full Scans
Thanks,
Sergiy
Edited by: kiberpress on Sep 30, 2009 6:59 AM

A query with different syntax would result in a different hash value.
Stored outlines work based on hash value.
Your question is probably answered now.
Sybrand Bakker
Senior Oracle DBA

Same query with different explain plans

Hi All,
I have one of the select query with different explain plans on two separate env, the query fetches the correct index on test env whereas on prod it's not fetching the same index.
The structure, indices, no. of rows are similar in CRMINFO table with up-to-date statistics.
Env Details :
OS - Sun Solaris 5.10
DB - 10.2.0.4
Init param:
Optimizer_mode = ALL_ROWS
optimizer_dynamic_sampling integer 5
optimizer_features_enable string 10.2.0.4
optimizer_index_caching integer 90
optimizer_index_cost_adj integer 30
Query :*
SELECT COUNT (*)
FROM CRMINFO
WHERE RETAILER = :1
AND STATUS = 20
AND EXC = :1
AND SUBNO IS NULL
Expain Plan (TST):
SELECT STATEMENT ALL_ROWSCost: 916 Bytes: 19 Cardinality: 1
3 SORT AGGREGATE Bytes: 19 Cardinality: 1
2 TABLE ACCESS BY INDEX ROWID TABLE TST.CRMINFO Cost: 916 Bytes: 16,663 Cardinality: 877
1 INDEX RANGE SCAN INDEX TST.CRMINFO_X1 Cost: 42 Cardinality: 12,549
Index (TST):
CRMINFO_X1(EXC, RETAILER, STATUS)
Explain Plan (PROD):
SELECT STATEMENT ALL_ROWSCost: 1,832 Bytes: 19 Cardinality: 1
3 SORT AGGREGATE Bytes: 19 Cardinality: 1
2 TABLE ACCESS BY INDEX ROWID TABLE PROD.CRMINFO Cost: 1,832 Bytes: 2,052 Cardinality: 108
1 INDEX RANGE SCAN INDEX PROD.CRMINFO_X2 Cost: 117 Cardinality: 42,519
Index (PROD):
CRMINFO_X2 (RETAILER)
How does Oracle calculates the cost and decides which index it should fetch ? Why it didn't choose the same index as of test env? How should i approach and which domains i need to dig-in to find the cause?
I did try playing with the above mentioned init parameters but it didn't help at all.
Thanks.
Regards,
~Pointer

Pointer wrote:
Hmm, my worry is how do i force oracle to grap the proper index on prod i.e (CRMINFO_X1). I certainly believe it's a bad approach on adding a hint in the select statement and to force oralce to fetch that index.Why do you believe that, the index you mention is the "proper" index versus what Oracle is choosing? Can you prove with hinting that the "proper" index results in a faster and more efficient execution plan? If it does, then the next place I would look at is the statistics for the tables and columns of interest. From here you could try and estimate why Oracle thinks the other index is better. Another option is to run a 10053 (CBO) trace and see why Oracle thinks it is better.
I would not support a hint in a production environment, except in the most extreme cases. Usually the CBO makes the right choice, but it only can if the statistics match the distribution of data.
Refreshing the data may help me simulating the issue on TST but it wouldn't help me to understand why on prod it uses CRMINFO_X2 instead of CRMINFO_X1 which has all the three columns in the Where clause of the query.It would help because it's a test environment and you wouldn't have to do any queries directly on your production system to achieve the same results.
>
A bad thought here :( , if i create a new index by changing the column positioning say like ( RETAILER, STATUS , EXC) instead of (EXC, RETAILER, STATUS) will oracle fetch it ? or would it help in reducing the cost and cardinatlity of the select query.It's not that easy. There is a lot that goes into the cost calculation, some of that is known (through the great work by Jonathan Lewis and Richard Foote), and some of that is purely internal to Oracle. If you are more interested in the internals Cost-Based Oracle Fundamentals by Jonathan Lewis is a great book.
HTH!

Query with order by clause

Hi,
I found a query with order by clause in procedure which is taking long time.
Stats are upto date.
Total Rows :650000.
It is ordered by primary key column.
select * from table_name order by col1;
col1 is a primary key.No of cpu's used is 4.
can anyone suggest me a better solution to improve the performance of a query.
Is it better to use parallel hint for above scenario.
Any help really apprecaited.
Thanks in advance.

Hi,
Thanks for ur immediate reply.
It doesn't have where clause.
below is the plan
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 619071987
| Id | Operation                   | Name                 | Rows | Bytes | Cos
|   0 | SELECT STATEMENT            |                      |   671K|   255M| 125
|   1 | TABLE ACCESS BY INDEX ROWID| FULL_ITEM_FACILITIES |   671K|   255M| 125
|   2 |   INDEX FULL SCAN           | FIF_PK               |   671K|       |
9 rows selected
Executed in 0.094 secondsThanks in advance
Edited by: unique on Jun 22, 2009 8:26 AM

Simple spatial query with different SRID

Can anyone help me with just a real simple spatial query with different SRID.
Here is the error i get when i perform the query:
AND SDO_RELATE(A.geometrie_point, B.GEOMETRIE_POLYGONE, 'mask=anyinteract querytype=WINDOW') = 'TRUE'
ERROR at line 4:
ORA-00604: error occurred at recursive SQL level 1
ORA-13207: incorrect use of the [IN COMPATIBLE BOUNDS in SDO_RELATE] operator
ORA-06512: at "MDSYS.SDO_INDEX_METHOD", line 84
ORA-06512: at line 4

Hi,
I am using 8.1.7.2 and i have the lattest spatial patch.
From the start i had different SRID. The only thing i changed was the bounds of the coordinate system.
I reset my bounds of the coordinate system with SRID 8307 to -180,
180 in X (longitude), and -90,90 in Y (latitude) to see if the query window geometry
(geom2) will be transformed to the coordinate system of the layer geometries (geom1)
Her is the content of the user_sdo_geom_metadata :
GIS_PCP GEOMETRIE_POINT
SDO_DIM_ARRAY(SDO_DIM_ELEMENT('X', -5800000, 3600000, .00000005), SDO_DIM_ELEMENT('Y', 3516000, 6000000, .00000005))
82227
GIS_TEST GEOMETRIE_POLYGONE
SDO_DIM_ARRAY(SDO_DIM_ELEMENT('X', -180, 180, .00000005), SDO_DIM_ELEMENT('Y', -90, 90, .00000005))
8307
Here is my query :
select /*+ ordered */ A.no_point
from gis_pcp A, gis_test B
WHERE SDO_RELATE(A.geometrie_POINT, B.GEOMETRIE_POLYGONE, 'mask=anyinteract querytype=WINDOW') = 'TRUE';
Here is my result :
WHERE SDO_RELATE(A.geometrie_POINT, B.GEOMETRIE_POLYGONE, 'mask=anyinteract querytype=WINDOW') = 'TRUE'
ERROR at line 3:
ORA-00604: error occurred at recursive SQL level 1
ORA-13207: incorrect use of the [IN COMPATIBLE BOUNDS in SDO_RELATE] operator
ORA-06512: at "MDSYS.SDO_INDEX_METHOD", line 84
ORA-06512: at line 4
If i change the bounds of GIS_TEST to the exact bouns of GIS_PCP then i dont have the error message above and i have correct results. Do i have the adjust the bounds of every layer to fit the biggest bound?

Not able to migrate a query with not exist clause

Hi all,
I'm using Toplink 10.1.3 and I am trying to rewrite the following query with Expression Framework:
select distinct r.e_ogg_oper_k_oggetto
FROM regola_accettazione_oper_banc r, oggetto_operazione_bancaria o
where not exists (
select 1
FROM limitaz_ogg_tipo_oper_banc l
where nvl(l.d_fine_validita,trunc(sysdate)+1)>trunc(sysdate)
and l.d_inizio_validita <= trunc(sysdate)
and l.e_tpodv_k_tipo_operazione=:appoggio.tipo_operaz
and l.e_ogg_oper_k_oggetto=r.e_ogg_oper_k_oggetto
and l.e_uni_oper_k_unita_oper_util= :appoggio.e_uni_oper_k_unita_oper_esegui )
and r.e_oper_ban_k_operaz_bancaria=:appoggio.form
and r.e_ogg_oper_k_oggetto=o.k_oggetto
and o.e_ogg_oper_k_oggetto is null
and o.k_oggetto != nvl(:appoggio.oggetto_autom,,'0')
and o.k_oggetto like substr(:appoggio.oggetto,1,2)||'%'
and r.d_inizio_validita <= :appoggio.d_contab
and to_date(nvl(to_char(r.d_fine_validita,DD/MM/YYYY'),31/12/3999'),'DD/MM/YYYY')> :appoggio.d_contab
and o.f_natura_oggetto in ('G','P') and r.f_oggetto_automatizzato!='S'
I'm not able to "attach" the not exist clause to the rest of query.
How can I do it?
Thank you very much.

Not exists can be used in an expression through using a ReportQuery sub-query.
i.e.
ExpressionBuilder outerBuilder = new ExpressionBuilder();
ReadAllQuery outerQuery = new ReadAllQuery(Employee.class, outerBuilder);
ExpressionBuilder subBuilder = new ExpressionBuilder();
ReportQuery subQuery = new ReportQuery(Address.class, subBuilder);
subQuery.addAttribute("id");
subQuery.setSelectionCriteria(
subBuilder.get("city").equal(outerBuilder.get("address").get("city")
.and(subBuilder.notEqual(outerBuilder.get("address")))));
outerQuery.setSelectionCriteria(
outerBuilder.notExists(subQuery));
List results = (List) session.executeQuery(outerQuery);
Refer to the documentation section on sub-queries for more information.
I would suggest simlpifying the where clause until you get the sub-query working to start.
You can also always use a custom SQL query in TopLink.

Variable reuse with different sql clauses

Hi There,
Is it possible to reuse the same variable with different sql queries in packages....
Example:
i have a variable say
1)variable name: filename
2)query in variable: select 'emp.txt' from dual
so using this variable name in data store, i am passing file name dynamically, but i need to change the file name emp.txt to dept.txt if emp.txt feed is missing.
One solution from my side is using one dump table having file name. any more without using db tables
please share views
Cheers,
Surya

Hi Bhabani,
Thanks for your prompt reply, it was really helpful....
for suppose in i have feed name like dept.20110325, consider as sysdate.
so i need to pass feed name like above format...
As of my understanding from your reply, in third step we can give only string like 'emp1.txt', is not possible to write query like in assign mode: select 'dept'||to_char(sysdate,'yyyymmdd') from dual
Cheers,
Surya

Query with different parameter take different time to execute.

Hi,
I am a C/C++ programmer and newbie to database. I find weird case to my company database. oracle 10g.
I have a query (below). When I set GENRE_ID value to 20, query execution time only take *5* seconds. But when I change to 10, it take *54* seconds! The same query but different values GENRE_ID (20 or 10) -- it also happen to other GENRE_ID values.
on below query
WHERE substr(GENRE_ID,0,2) = 10 and GENRE_ID != 10) take 54 seconds
WHERE substr(GENRE_ID,0,2) = 20 and GENRE_ID != 20) take 5 seconds
The explain plan give exact same result for both queries.
I have follow Re: 3. How to improve the performance of my query? / My query is running slow. for optimizer but the problem still there.
And we have rebuilt all indexes.
Anyone can help me? I need any advises for this problem.
Note:
Song table only have 570K records and Song_vod table 1100 records.
Query:
select *
from(
select rownum rowno, a.*
from(
select a.SONG_VOD_ID, a.SONG_ID, a.VOD_TITLE, a.ALBUM_ID, a.ARTIST_ID, a.VOD_ISSUE_DATE, a.VOD_ORDER_ISSUE_DATE, a.VOD_ADULT_YN, a.VOD_L_IMG_PATH, a.VOD_M_IMG_PATH, a.VOD_S_IMG_PATH, a.RECOMMEND_CNT, a.OPPOSE_CNT, get_song_name(a.SONG_ID) SONG_NAME, get_album_name(a.ALBUM_ID) ALBUM_NAME, get_artist_name(a.ARTIST_ID) ARTIST_NAME, VOD_ISSUE_DATE vodIssueDate
from SONG_VOD a inner join SONG b on a.SONG_ID = b.SONG_ID
where a.LC_STATUS_CD = 'CS0006'
AND (b.GENRE_ID
in (
select GENRE_ID
from MD_GENRE
WHERE substr(GENRE_ID,0,2) = 10
and GENRE_ID != 10)
OR b.GENRE_ID
in (
select GENRE_ID
from MD_GENRE
WHERE substr(GENRE_ID,0,2) = '40'
and GENRE_ID != '40'
) order by a.REG_DATE desc, a.SONG_VOD_ID desc
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Thank you,
Regards
-=Rika Chaniago=-

907814 wrote:
I am a C/C++ programmer and newbie to database. I find weird case to my company database. oracle 10g.
I have a query (below). When I set GENRE_ID value to 20, query execution time only take *5* seconds. But when I change to 10, it take *54* seconds! The same query but different values GENRE_ID (20 or 10) -- it also happen to other GENRE_ID values.This is to be expected. Even an IDENTICAL query can (and often will) have DIFFERENT execution times.
The typical reason is how fast the query process can get to the data block(s) containing the relevant row(s). Is that data block still on disk and require expensive and slow physical I/O to move it into the buffer cache for use? Is that data block already cached for much faster logical I/O access? If in memory, is there any contention in getting a latch for the chain the data block hangs off from (how hot is that block)? Etc.
The run-time environment is not static. Thus execution times of queries (called cursors in Oracle) is not static. Execution times are expected to vary.
Some basics. SQL code is source code. SQL code needs to be parsed and converted into a set of instructions that the server can execute. So it is similar to C/C++. SQL source code needs to be compiled. This executable code in Oracle is called a cursor.
Like your code, the cursor can be executed with different input variables (bind variables). However, that code would have been compiled using certain assumptions about the data. And that executable code may work fine for some input data, and work not so okay for other input data. As the input parameter values are not not equal. E.g. there are a 1000 rows to process when employee type parameter is "employee" and only 10 rows when it is "manager". The code could have been compiled with the assumption that 10 rows would be the average for all input parameters - the Cost Based Optimiser needs to base its decision on the best execution path for that SQL source code on certain assumptions about the data. These may not always be correct. (usually due incorrect or stale stats about the data)
Thus you also need to look at what the execution plan is (the URL for which has already been supplied).
The Oracle® Database Performance Tuning Guide is at http://www.oracle.com/pls/db112/portal.all_books

Huge difference in Execution time in same Query with different Parameter

Hi Experts,
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AND
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<< WHERE
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Thanks in Advance.
Regards
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Hi there
Unfortunately you provided too few information to analyze the issue.
Maybe the underlying tables have very skew data and the first select has to read a larger share of the base tables.
Maybe the columns had been unloaded before and the first query had to load them into memory first.
Is the runtime always bad with the one and always good with the other set of parameters?
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- Lars

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Hello all,
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Hello Edwin,
works perfect. Thank you.
BR,
Stefan

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Hi at all,
just a crazy thing happened. I created a query. Every user gets the result with the currency EURO.
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Hi,
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Sudha.

Hi Nagesh,
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I have assigned one-to-one from R/3 to BW.
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I want to see one record in BW for every entry coming from R/3. At present in the BW master data sitting as 2 records.
Example:
one record in R/3 with:
FROM date: 01/01/1900; TO date: 12/31/9999.
Inserted 2 records into BW with:
FROM date: 01/01/1000; TO date: 12/31/1899.
FROM date: 01/01/1900; TO date: 12/31/9999.
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Sudha.

Oracle query tuning : query with Order-by clause

Hi
I am having a query in my database :
SELECT * FROM SAPR3.HRP1001 WHERE "MANDT" = 990
ORDER BY
"MANDT" , "OTYPE" , "OBJID" , "PLVAR" , "RSIGN" , "RELAT" , "ISTAT" , "PRIOX" , "BEGDA" , "ENDDA" ,"VARYF" , "SEQNR" ;
Autotrace output is :
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=4649 Card=171895 Byt
es=22862035)
1 0 SORT (ORDER BY) (Cost=4649 Card=171895 Bytes=22862035)
2 1 TABLE ACCESS (FULL) OF 'HRP1001' (Cost=1170 Card=171895
Bytes=22862035)
Statistics
0 recursive calls
5 db block gets
12157 consistent gets
11543 physical reads
0 redo size
38253080 bytes sent via SQL*Net to client
376841 bytes received via SQL*Net from client
34201 SQL*Net roundtrips to/from client
0 sorts (memory)
1 sorts (disk)
512992 rows processed
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pleas suggest me as I am running into major problems, i can post the output of any query u require from my side. Any help wil be highly apprciated.
Rishi

> The query was alwasy spilling over to the One-Parse execution . It can be seen thru ST04N ->resource consumption-> sql work area trace.
>
> An undocumented oracle parameter smmmax_size was set which allowed for more usage of physical memory by single process and there was no spillover to the TEMP tablespaces.
>
> Also the File read time was analysed from Unix level ( From SAP thru ST04 ->filesystem wait s-> Avg rd (ms) and Ang writes (ms) which showed that reading from the File was not happening well. )
Hi Rishi,
the provided execution statistics prove the opposite:
>Statistics
>...
>0 sorts (memory)
> 1 sorts (disk)
>512992 rows processed
This indeed was a single-pass sort, which means it had to use the temp tablespace for one pass of the sorting/grouping.
Remember that Oracle distinguishes three kinds of sorts: 1. "in memory", 2. "single-pass" and 3. "multi-pass".
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BTW: the file read times in ST04 are aquired through Oracle V$ views and not directly from the OS - that can make a big difference sometimes.
regards,
Lars

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Hello!
I need to execute a BW-query from an Abap-report.
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Thanks for the link.
Well, I already read that document and I followed the links to the former blogs on this subject.
But this solution doesn't work for me: CL_RSR_QUERY_VARIABLES is unknown.
I read the pdf and the function-module-code, but I still don't have an idea how to work with query- variants . The example-coding includes a line
DATA: wf_variant TYPE variant .
but that's not used, or is it?
(I don't have a set of variables and conditions, but just a variant-name. The variant will be created by other people, who would start my report.)
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Query with 'different from' clause in Sqlite

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