Generate a SQL "IN" clause using ALDSP
Problem Summary
ALDSP: Generate a SQL "IN" clause
Problem Description
I would like to know if there is a possibility of generating an SQL "IN" clause using ALDSP.
I would need the XQuery construct to create an SQLsomething like-
select * from emp where dept_no in ('101', '201', '301');
The values for dept_no would be passed at runtime.
(Or)
Will be I able to create a physical data service using the SQL - select * from emp where dept_no in ?
If yes, how do I map the parameter to "?"
Thanks.
Mike,
Thanks for the response. The section that you are taking about is to push joins to DB. Joining tables is not the problem that I am facing.
I will rephrase the problem.
I would like to know if there is a possibility of creating a ALDSP physical data service (.ds file) with the SQL as select * from employee where emp_id in ?
and I should be able to pass multiple employee ids to the "?" parameter. select * from emp where emp_id in ('101', '201', '301');
There is no fixed number of ids that a user can pass.
Thanks.
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I have the privilege of performing a very tedious task.
We have some home grown regular expressions in our company. I now need to expand these regular expressions.
Samples:
a = 0-3
b = Null, 0, 1
Expression: Meaning
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1a: 10, 11, 12, 13
1b: 1, 10, 11
1[2,3]ab: 120, 1200, 1201, ....
It get's even more inetersting because there is a possibility of 1[2,3]a.ab
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My only confusion is how do I INCREMENT dynamically. The INCREMENT seems to be a constant in both a FOR and ITERATE statement. I need to figure a way to increment with .01, .1, etc.
Any help will be greatly appreciated.
CODE:
Reference: http://www.sqlsnippets.com/en/topic-11663.html
Objective: Expand a range with ITERATE
WITH t AS
(SELECT '2:4' pt
FROM DUAL
UNION ALL
SELECT '6:9' pt
FROM DUAL)
SELECT pt AS code_expression
-- , KEY
-- , min_key
-- , max_key
, m_1 AS code
FROM t
MODEL
PARTITION BY (pt)
DIMENSION BY ( 0 AS KEY )
MEASURES (
0 AS m_1,
TO_NUMBER(SUBSTR(pt, 1, INSTR(pt, ':') - 1)) AS min_key,
TO_NUMBER(SUBSTR(pt, INSTR(pt, ':') + 1)) AS max_key
RULES
-- UPSERT
ITERATE (100000) UNTIL ( ITERATION_NUMBER = max_key[0] - min_key[0] )
m_1[ITERATION_NUMBER] = min_key[0] + ITERATION_NUMBER
ORDER BY pt, m_1
Explanation:
Line numbers are based on the assupmtion that "WITH t AS" starts at line 5.
If you need detailed information regarding the MODEL clause please refer to
the Refrence site stated above or read some documentation.
Partition-
Line 18: PARTITION BY (pt)
This will make sure that each "KEY" will start at 0 for each value of pt.
Dimension-
Line 19: DIMENSION BY ( 0 AS KEY )
This is necessary for the refrences max_key[0], and min_key[0] to work.
Measures-
Line 21: 0 AS m_1
A space holder for new values.
Line 22: TO_NUMBER(SUBSTR(pt, 1, INSTR(pt, ':') - 1)) AS min_key
The result is '1' for '1:5'.
Line 23: TO_NUMBER(SUBSTR(pt, INSTR(pt, ':') + 1)) AS max_key
The result is '5' for '1:5'.
Rules-
Line 26: UPSERT
This makes it possible for new rows to be created.
Line 27: ITERATE (100000) UNTIL ( ITERATION_NUMBER = max_key[0] - min_key[0] )
This reads ITERATE 100000 times or UNTIL the ITERATION_NUMBER = max_key[0] - min_key[0]
which would be 4 for '1:5', but since the ITERATION_NUMBER starts at 0, whatever follows
is repaeted 5 times.
Line 29: m_1[ITERATION_NUMBER] = min_key[0] + ITERATION_NUMBER
m_1[ITERATION_NUMBER] means m_1[Value of Dimension KEY].
Thus for each row of KEY the m_1 is min_key[0] + ITERATION_NUMBER.
Reference: http://www.sqlsnippets.com/en/topic-11663.html
Objective: Expand a range using FOR
WITH t AS
(SELECT '2:4' pt
FROM DUAL
UNION ALL
SELECT '6:9' pt
FROM DUAL)
, base AS
SELECT pt AS code_expression
, KEY AS code
, min_key
, max_key
, my_increment
, m_1
FROM t
MODEL
PARTITION BY (pt)
DIMENSION BY ( CAST(0 AS NUMBER) AS KEY )
MEASURES (
CAST(NULL AS CHAR) AS m_1,
TO_NUMBER(SUBSTR(pt, 1, INSTR(pt, ':') - 1)) AS min_key,
TO_NUMBER(SUBSTR(pt, INSTR(pt, ':') + 1)) AS max_key,
.1 AS my_increment
RULES
-- UPSERT
m_1[FOR KEY FROM min_key[0] TO max_key[0] INCREMENT 1] = 'Y'
ORDER BY pt, KEY, m_1
SELECT code_expression, code
FROM base
WHERE m_1 = 'Y'
Explanation:
Line numbers are based on the assupmtion that "WITH t AS" starts at line 5.
If you need detailed information regarding the MODEL clause please refer to
the Refrence site stated above or read some documentation.
Partition-
Line 21: PARTITION BY (pt)
This will make sure that each "KEY" will start at 0 for each value of pt.
Dimension-
Line 22: DIMENSION BY ( 0 AS KEY )
This is necessary for the refrences max_key[0], and min_key[0] to work.
Measures-
Line 24: CAST(NULL AS CHAR) AS m_1
A space holder for results.
Line 25: TO_NUMBER(SUBSTR(pt, 1, INSTR(pt, ':') - 1)) AS min_key
The result is '1' for '1:5'.
Line 26: TO_NUMBER(SUBSTR(pt, INSTR(pt, ':') + 1)) AS max_key
The result is '5' for '1:5'.
Line 27: .1 AS my_increment
The INCREMENT I would like to use.
Rules-
Line 30: UPSERT
This makes it possible for new rows to be created.
However seems like it is not necessary.
Line 32: m_1[FOR KEY FROM min_key[0] TO max_key[0] INCREMENT 1] = 'Y'
Where the KE value is between min_key[0] and max_key[0] set the value of m_1 to 'Y'
*/Of course, you can accomplish the same thing without MODEL using an Integer Series Generator like this.
create table t ( min_val number, max_val number, increment_size number );
insert into t values ( 2, 3, 0.1 );
insert into t values ( 1.02, 1.08, 0.02 );
commit;
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min_val ,
increment_size ,
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order by 3
MIN_VAL INCREMENT_SIZE VAL
1.02 .02 1.02
1.02 .02 1.04
1.02 .02 1.06
1.02 .02 1.08
2 .1 2
2 .1 2.1
2 .1 2.2
2 .1 2.3
2 .1 2.4
2 .1 2.5
2 .1 2.6
2 .1 2.7
2 .1 2.8
2 .1 2.9
2 .1 3
15 rows selected.--
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*File: EmpViewImpl.java
*Created as Read-Only access view object with the
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*select manager_id, last_name from hr.employees
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*order by manager_id
package model;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import oracle.jbo.domain.Array;
import oracle.jbo.server.ViewObjectImpl;
import oracle.sql.ArrayDescriptor;
// --- File generated by Oracle ADF Business Components Design Time.
// --- Custom code may be added to this class.
// --- Warning: Do not modify method signatures of generated methods.
public class EmpViewImpl extends ViewObjectImpl implements model.common.EmpView
private ArrayDescriptor descriptor;
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private final static int NUM_DEFAULT_VALUES = DEFAULT_VALUES_STRING.length;
* This is the default constructor (do not remove)
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* setManagerID
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try
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Hi All,
Oracle Support has asked me to run a diagnostic script (OTL_Diag.sql for anyone familar with the script) that produces output in HTML format using SQL*Plus to help troubleshoot an OTL problem we are having. Unfortunately I don't have SQL*Plus installed and my company is not on board with me installing it because of the SQL*NET connection required. Instead I have access to SQL Developer 3.1.0.7. While this works fine for most situations I'm having problems generating the required .html output file that Support needs.
I've tried runing the OTL_Diag.sql a couple of ways using SQL Developer. First, I opened the file from SQL Developer and using the Run Script functionality (F5) I executed the code that way. This method did give me an opportunity to input the necessary parms and it did create the 'start' of the HTML file on my (Windows) file system, but the script seemed to abort with a java error that indicated some sort of format error (sorry, I'm not a java person so I can't provide any more info, but I'll be glad to get the exact error message if anyone thinks that will help solve my issue).
My second approach was to open a SQL Window where I typed in @C:\OTL_Diag.sql without quotes. This approach also gave me the opportunity to enter the necessary input parms and it seemed to end normally. It also created the 'start' of the diaganostic output file on my Windows file system, but it 'completed' before any of the 'real' diaganostic output was written to the .html file.
The Metalink note clearly specifies that the OTL_Diag.sql script is to be run with SQL*Plus 10.2 or above so I don't think I can complain too loudly to Oracle about this...but given that I don't have access to this product (and it is useless for me to again ask to install it) I am hoping someone out there has some ideas or insight as to how I can use SQL Developer to execute this diag script in a manner that will produce the required .html output file.
Thanks in advance to anyone taking time to read my post !!
Jeff
Edited by: user13111861 on Jul 10, 2012 6:43 PM
Edited by: user13111861 on Jul 10, 2012 7:51 PM>
As a result, at this point in time my only available tool to run the OTL_Diag.sql script (provided by Oracle Support) is SQL Developer
>
Then you will have to edit the script, break it into pieces, execute each piece manually and save the output to feed into the next piece as required based on what the script is actually doing. Don't post the script or contents as that will likely violate your support agreement.
As I already mentioned the script may be using syntax and/or commands that are simply not supported by sql*developer. One likely area is the script may be producing intermediate output scripts that are then processed by a later portion of the script. If that is the case then my suggestion to execute the pieces manually should work but you will need to do some trial-and-error to see.
Even if you appear to be successful you will still have an issue when you communicate the results of your 'test' to Oracle support and they determine you didn't follow their instructions to use the proper tool.
Sounds like your management is either ignorant or incompetent so I suggest you cover yourself by documentating the instructions from Oracle support and the direct orders you were given to disregard those instructions. No need to discuss that issue further but clearly there are resources available somewhere in the org that has the proper privileges or they wouldn't be able to maintain and support the database. If they want to pay for support they should heed their advice. Nuff said. -
How can I set a variable number of values in a SQL IN clause?
Hi,
How can I set a variable number of values in a SQL IN clause without having to change the text of the SQL statement each time?
I read the link http://radio.weblogs.com/0118231/2003/06/18.html. as steve wrote.
SELECT *
FROM EMP
WHERE ENAME IN (?)
But we need the steps not to create type in the system and would there be any other solution if we would like to use variable number of values in a SQL IN clause ?
We are using JDeveloper 10.1.3.2 with Oracle Database 10.1.3.2
Thanks
RajHi,
can you please explain why the solution from steve is not the right solution for you.
regards
Peter -
Error when generating the SQL statement while running the Query
Hello SDN Mates,
Am using three cubes in one infoset and build a query on that. Intially it was running fine, but now am getting error generating the SQL statement. Can you please throw some light on this. Your idea would be highly appreciated.
Thanks and Regards
Arun SHi Arun
is there any change in the objects (Check also the consistency of infoobject ) included in infoset, just make sure those are active, open the query in designer and check if no error/warning message are present
Thanks
Tripple k -
Hi,
Fairly new to Oracle, after manually creating my tables in Oracle, how can i generate an SQL file that could be used in loading another DB (like MS-SQL Server does).
Also if anyone can walk me thru geting SQL Plus 8.0 i have the username, password, but could not figure out what the Host String is.Folashade,
You can use SQL*LOADER to load a delimited file into Oracle database. For more info on SQL*LOADER, please refer to SQL*LOADER manual which is posted online on this site.
For the second question, you need to look in your tnsnames.ora file to see what the host string is. What tool did you use to create your tnsnames.ora file?
A typical tnsnames.ora file looks as follows:
host_string.WORLD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = xxx.x.xxx.xx)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = db_name)
Here in this example, your host string is host_string.
Regards,
John -
SQL Performance issue: Using user defined function with group by
Hi Everyone,
im new here and I really could need some help on a weird performance issue. I hope this is the right topic for SQL performance issues.
Well ok, i create a function for converting a date from timezone GMT to a specified timzeone.
CREATE OR REPLACE FUNCTION I3S_REP_1.fnc_user_rep_date_to_local (date_in IN date, tz_name_in IN VARCHAR2) RETURN date
IS
tz_name VARCHAR2(100);
date_out date;
BEGIN
SELECT
to_date(to_char(cast(from_tz(cast( date_in AS TIMESTAMP),'GMT')AT
TIME ZONE (tz_name_in) AS DATE),'dd-mm-yyyy hh24:mi:ss'),'dd-mm-yyyy hh24:mi:ss')
INTO date_out
FROM dual;
RETURN date_out;
END fnc_user_rep_date_to_local;The following statement is just an example, the real statement is much more complex. So I select some date values from a table and aggregate a little.
select
stp_end_stamp,
count(*) noi
from step
where
stp_end_stamp
BETWEEN
to_date('23-05-2009 00:00:00','dd-mm-yyyy hh24:mi:ss')
AND
to_date('23-07-2009 00:00:00','dd-mm-yyyy hh24:mi:ss')
group by
stp_end_stampThis statement selects ~70000 rows and needs ~ 70ms
If i use the function it selects the same number of rows ;-) and takes ~ 4 sec ...
select
fnc_user_rep_date_to_local(stp_end_stamp,'Europe/Berlin'),
count(*) noi
from step
where
stp_end_stamp
BETWEEN
to_date('23-05-2009 00:00:00','dd-mm-yyyy hh24:mi:ss')
AND
to_date('23-07-2009 00:00:00','dd-mm-yyyy hh24:mi:ss')
group by
fnc_user_rep_date_to_local(stp_end_stamp,'Europe/Berlin')I understand that the DB has to execute the function for each row.
But if I execute the following statement, it takes only ~90ms ...
select
fnc_user_rep_date_to_gmt(stp_end_stamp,'Europe/Berlin','ny21654'),
noi
from
select
stp_end_stamp,
count(*) noi
from step
where
stp_end_stamp
BETWEEN
to_date('23-05-2009 00:00:00','dd-mm-yyyy hh24:mi:ss')
AND
to_date('23-07-2009 00:00:00','dd-mm-yyyy hh24:mi:ss')
group by
stp_end_stamp
)The execution plan for all three statements is EXACTLY the same!!!
Usually i would say, that I use the third statement and the world is in order. BUT I'm working on a BI project with a tool called Business Objects and it generates SQL, so my hands are bound and I can't make this tool to generate the SQL as a subselect.
My questions are:
Why is the second statement sooo much slower than the third?
and
Howcan I force the optimizer to do whatever he is doing to make the third statement so fast?
I would really appreciate some help on this really weird issue.
Thanks in advance,
AndiHi,
The execution plan for all three statements is EXACTLY the same!!!Not exactly. Plans are the same - true. They uses slightly different approach to call function. See:
drop table t cascade constraints purge;
create table t as select mod(rownum,10) id, cast('x' as char(500)) pad from dual connect by level <= 10000;
exec dbms_stats.gather_table_stats(user, 't');
create or replace function test_fnc(p_int number) return number is
begin
return trunc(p_int);
end;
explain plan for select id from t group by id;
select * from table(dbms_xplan.display(null,null,'advanced'));
explain plan for select test_fnc(id) from t group by test_fnc(id);
select * from table(dbms_xplan.display(null,null,'advanced'));
explain plan for select test_fnc(id) from (select id from t group by id);
select * from table(dbms_xplan.display(null,null,'advanced'));Output:
PLAN_TABLE_OUTPUT
Plan hash value: 47235625
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 10 | 30 | 162 (3)| 00:00:02 |
| 1 | HASH GROUP BY | | 10 | 30 | 162 (3)| 00:00:02 |
| 2 | TABLE ACCESS FULL| T | 10000 | 30000 | 159 (1)| 00:00:02 |
Query Block Name / Object Alias (identified by operation id):
1 - SEL$1
2 - SEL$1 / T@SEL$1
Outline Data
/*+
BEGIN_OUTLINE_DATA
FULL(@"SEL$1" "T"@"SEL$1")
OUTLINE_LEAF(@"SEL$1")
ALL_ROWS
OPTIMIZER_FEATURES_ENABLE('10.2.0.4')
IGNORE_OPTIM_EMBEDDED_HINTS
END_OUTLINE_DATA
Column Projection Information (identified by operation id):
1 - (#keys=1) "ID"[NUMBER,22]
2 - "ID"[NUMBER,22]
34 rows selected.
SQL>
Explained.
SQL>
PLAN_TABLE_OUTPUT
Plan hash value: 47235625
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 10 | 30 | 162 (3)| 00:00:02 |
| 1 | HASH GROUP BY | | 10 | 30 | 162 (3)| 00:00:02 |
| 2 | TABLE ACCESS FULL| T | 10000 | 30000 | 159 (1)| 00:00:02 |
Query Block Name / Object Alias (identified by operation id):
1 - SEL$1
2 - SEL$1 / T@SEL$1
Outline Data
/*+
BEGIN_OUTLINE_DATA
FULL(@"SEL$1" "T"@"SEL$1")
OUTLINE_LEAF(@"SEL$1")
ALL_ROWS
OPTIMIZER_FEATURES_ENABLE('10.2.0.4')
IGNORE_OPTIM_EMBEDDED_HINTS
END_OUTLINE_DATA
Column Projection Information (identified by operation id):
1 - (#keys=1) "TEST_FNC"("ID")[22]
2 - "ID"[NUMBER,22]
34 rows selected.
SQL>
Explained.
SQL> select * from table(dbms_xplan.display(null,null,'advanced'));
PLAN_TABLE_OUTPUT
Plan hash value: 47235625
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 10 | 30 | 162 (3)| 00:00:02 |
| 1 | HASH GROUP BY | | 10 | 30 | 162 (3)| 00:00:02 |
| 2 | TABLE ACCESS FULL| T | 10000 | 30000 | 159 (1)| 00:00:02 |
Query Block Name / Object Alias (identified by operation id):
1 - SEL$F5BB74E1
2 - SEL$F5BB74E1 / T@SEL$2
Outline Data
/*+
BEGIN_OUTLINE_DATA
FULL(@"SEL$F5BB74E1" "T"@"SEL$2")
OUTLINE(@"SEL$2")
OUTLINE(@"SEL$1")
MERGE(@"SEL$2")
OUTLINE_LEAF(@"SEL$F5BB74E1")
ALL_ROWS
OPTIMIZER_FEATURES_ENABLE('10.2.0.4')
IGNORE_OPTIM_EMBEDDED_HINTS
END_OUTLINE_DATA
Column Projection Information (identified by operation id):
1 - (#keys=1) "ID"[NUMBER,22]
2 - "ID"[NUMBER,22]
37 rows selected.
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