db2 stored procedure format - sql

I'm using db2 and SQuirreL SQL
I'm trying to create a stored procedure with a simple select statement inside of it. When I omit the select statement in the following below and run the code, the procedure is created. Also this procedure can be dropped and called.
CREATE PROCEDURE test_procedure
LANGUAGE SQL
BEGIN
END
When I add in the select statement, I get Error: DB2 SQL Error: SQLCODE=-102, SQLSTATE=42601,...
CREATE PROCEDURE test_procedure
LANGUAGE SQL
BEGIN
SELECT column_name FROM table_name
END
If you go to IBM iseries information center is says:
SQL0104 SQLCODE -104 SQLSTATE 42601
Explanation: Token &1 was not valid. Valid tokens: &2.

It appears that I wasn't given the right permissions to execute the stored procedure. SQL0551N This link explains more about the issue.

The statement terminator in SQuirreL is called "Statement separator" and it can be defined in:
Menu Session > Session Properties... > tab SQL > at the end of the SQL square, the option Statement Separator.
This is valid in version 3.5.3

Related

How to use SET OPTION within a DB2 stored procedure

I read (and tried) that I cannot use WITH UR in DB2 stored procedures. I am told that I can use SET OPTION to achieve the same. However, when I implement it in my stored procedure, it fails to compile (I moved around its location same error). My questions are:
Can I really not use WITH UR after my SELECT statements within a procedure?
Why is my stored procedure failing to compile with the below error
message?
Here is a simplified version of my code:
CREATE OR REPLACE PROCEDURE MySchema.MySampleProcedure()
DYNAMIC RESULT SETS 1
LANGUAGE SQL
SET OPTION COMMIT=*CHG
BEGIN
DECLARE GLOBAL TEMPORARY TABLE TEMP_TABLE AS (
SELECT 'testValue' as "Col Name"
) WITH DATA
BEGIN
DECLARE exitCursor CURSOR WITH RETURN FOR
SELECT *
FROM SESSION.TEMP_TABLE;
OPEN exitCursor;
END;
END
#
Error Message:
SQL0104N An unexpected token "SET OPTION COMMIT=*CHG" was found
following " LANGUAGE SQL
Here is code/error when I use WITH UR
CREATE OR REPLACE PROCEDURE MySchema.MySampleProcedure()
LANGUAGE SQL
DYNAMIC RESULT SETS 1
--#SET TERMINATOR #
BEGIN
DECLARE GLOBAL TEMPORARY TABLE TEMP_TABLE AS (
SELECT UTI AS "Trade ID" FROM XYZ WITH UR
) WITH DATA;
BEGIN
DECLARE exitCursor CURSOR WITH RETURN FOR
SELECT *
FROM SESSION.TEMP_TABLE;
OPEN exitCursor;
END;
END
#
line 9 is where the DECLARE GLOBAL TEMPORARY ... is
DB21034E The command was processed as an SQL statement because it was
not a valid Command Line Processor command. During SQL processing it
returned: SQL0109N The statement or command was not processed because
the following clause is not supported in the context where it is
used: "WITH ISOLATION USE AND KEEP". LINE NUMBER=9. SQLSTATE=42601
Specifying the isolation level:
For static SQL:
If an isolation-clause is specified in the statement, the value of that clause is used.
If an isolation-clause is not specified in the statement, the isolation level that was specified for the package when the package was bound to the database is used.
You need to bind the routine package with UR, since your DECLARE GTT statement is static. Before CREATE OR REPLACE use the following in the same session:
CALL SET_ROUTINE_OPTS('ISOLATION UR')
P.S.: If you want to run your routine not only 1 time in the same session without an error, use additional WITH REPLACE option of DECLARE.
If your Db2 server runs on Linux/Unix/Windows (Db2-LUW), then there is no such statement as SET OPTION COMMIT=*CHG , and so Db2 will throw an exception for that invalid syntax.
It is important to only use the matching Db2 Knowledge Centre for your Db2 platform and your Db2-version. Don't use Db2-Z/OS documentation for Db2-LUW development. The syntax and functionalities differ per platform and per version.
A Db2-LUW SQL PL procedure can use with ur in its internal queries, and if you are getting an error then something else is wrong. You have to use with ur in the correct syntax however, i.e in a statement that supports this clause. For your example you get the error because the clause does not appear to be valid in the depicted context. You can achieve the desired result in other ways, one of them being to populate the table in a separate statement from the declaration (e.g insert into session.temp_table("Trade ID") select uti from xyz with ur; ) and other ways are also possible.
One reason to use the online Db2 Knowledge Cenbtre documentation is that it includes sample programs, including sample SQL PL procedures, which are also available in source code form in the sample directory of your DB2-LUW server, in addition to being available on github. It is wise to study these, and get them working for you.

DB2 stored procedure gave syntax errors

I am creating a stored procedure for db2. But it is giving an error saying that
"SQL Error [42601]: An unexpected token "END-OF-STATEMENT" was found
following "SS_TOKEN_BAK". Expected tokens may include: " END IF"..
SQLCODE=-104, SQLSTATE=42601, DRIVER=4.23.42".
Following is my stored procedure.
CREATE OR REPLACE PROCEDURE TOKEN_CLEANUP_SP
BEGIN
DECLARE batchSize INTEGER;
-- ------------------------------------------
-- CONFIGURABLE ATTRIBUTES
-- ------------------------------------------
SET batchSize = 10000; -- SET BATCH SIZE FOR AVOID TABLE LOCKS [DEFAULT : 10000]
-- ------------------------------------------------------
-- BACKUP IDN_OAUTH2_ACCESS_TOKEN TABLE
-- ------------------------------------------------------
IF EXISTS (SELECT TABLE_NAME FROM TABLES WHERE TABLE_NAME = 'IDN_OAUTH2_ACCESS_TOKEN_BAK')
THEN
DROP TABLE IDN_OAUTH2_ACCESS_TOKEN_BAK;
END IF;
END/
Is anyone face this type of issue. Any help on this would be much appreciated.
Verify that you have the end-of-statement delimiter configured correctly for whatever tool submits the 'CREATE OR REPLACE' procedure. Different tools have different ways to configure the block terminator (alternatively known end of statement delimiter). For command line scripts, use --#SET TERMINATOR / at the start of the file, other ways are possible.
Your code sample shows / as the block terminator, so you might want to use that character as the block delimiter. The semi-colon terminates statements inside the block.
Separately you should see that your code won't compile if the specified table does not exist in the implied schema at compilation time, because you are using static SQL. You may want to use dynamic SQL instead for the drop table statement (search for 'EXECUTE IMMEDIATE' examples).

How to "select" inside a stored procedure or a UDF in DB2 LUW?

I believe this question is very trivial. I' unable to select rows inside a stored procedure that I defined, nor inside a UDF. Here is the syntax that I used:
Create Or Replace Procedure GenerateSequence(
In InternalUnitID SmallInt,
In ObjectTypeID SmallInt)
Language SQL
Dynamic Result Sets 1
Not Deterministic
No External Action
Modifies SQL Data
Commit On Return Yes
Begin
Select Number
From Sequence
Where InternalUnit=InternalUnitID
And ObjectType=ObjectTypeID;
End
If I try to create the above procedure (by putting the definition in a SQL file and running it). I get the following error message:
DB21034E The command was processed as an SQL statement because it was not a valid Command Line Processor command. During SQL processing it returned:
SQL0104N An unexpected token "Select Number From Sequence Where Intern" was
found following "n Return Yes Begin ". Expected tokens may include: "".
LINE NUMBER=21. SQLSTATE=42601
Any clue what can be the cause of this problem?
My environment is DB2 10.5 Express on Windows.
My problem was that I needed to use a cursor in order to return the result set to the caller of the stored procedure.
References:
CREATE PROCEDURE (SQL) statement
Compound SQL (compiled) statement

Error while creating procedure in db2

I got error while creating procedure in db2.
Error is - Expected tokens may include: psm_semicolon.. SQLCODE=-104
Help Me....
CREATE PROCEDURE update_new()
LANGUAGE SQL
BEGIN
CREATE TABLE TEMP(METADATA_KEY varchar(40),NEW_METADATA_KEY varchar(40));
END;
In whatever tool you're using, change the statement terminator to something other than semicolon and put that terminator at the end of the CREATE PROCEDURE statement.
For example, if using the command line processor, save this to a file (note the "#" symbol at the end:
CREATE PROCEDURE update_new()
LANGUAGE SQL
BEGIN
CREATE TABLE TEMP(METADATA_KEY varchar(40),NEW_METADATA_KEY varchar(40));
END#
then execute the file: db2 -td# -f myproc.sql
The reason for doing this is that semicolons are always used as terminators within the procedure code, so you must use something else to terminate the CREATE PROCEDURE statement.

ORA:00900 Invalid sql statement

i created a procedure with 32 in argument,it sucessfully created.but when i am executing this in back end oracle the errror came ORA:00900 Invalid sql statement
Use:
SQL> alter procedure [your procedure name here] compile;
SQL> show errors
...to be able to diagnose the issue from the resulting error output.
Also look at view USER_ERRORS.
Sometimes, show errors does not show anything when in fact there are errors. Especially after alter compile.
Finally, re-compile in TOAD or SQL Developer and you can easily navigate to the error.
In Oracle SQL Developer you should execute it this way:
BEGIN
YOUR_PROCEDURE(PARAM1, PARAM2);
END;
If you use EXECUTE or EXEC (which work in SqlPlus) you get the ORA-00900 error.