I need to know if is possible capturing SQLSTATE from an execution of Stored Procedure in a .BTEQ file for later use, All of this in Teradata.
Define your procedure as
REPLACE PROCEDURE user.procedure (IN in_parameter INTEGER , OUT sql_state VARCHAR(30))
then
SET sql_state = SQLSTATE
This will get you the sql_state in standard output (Terminal) . you can modify the same for file output .
Related
Is it possible to have default values in arguments of Stored procedures of Snowflake. For the below example, I am getting error. Please help
syntax error line 1 at position 53 unexpected ''test''.
create or replace procedure test(arg1 string default 'test')
returns string not null
language sql
as
$$
begin
return arg1;
end;
$$
;
Snowflake's procedures applies polymorphism instead of using default value. This solution is when you do not want to call sp like func1(Null)
For example (sql scripting):
create or replace procedure func1(arg1 varchar, arg2 varchar)
...
create or replace procedure func1(arg1 varchar)
...
call func1(arg1 , 'some-default-value')
...
One option could be providing NULL as value and handle it at the begining of the stored procedure with COALSESCE:
create or replace procedure test(arg1 string)
returns string not null
language sql
as
$$
begin
arg1 := COALESCE(arg1, 'test');
return arg1;
end;
$$;
CALL test(NULL);
-- test
Setting a default value/values as arguments directly in Stored procedures is not available in Snowflake currently
The below link can be referred for the allowed syntax in Stored Procedures
https://docs.snowflake.com/en/sql-reference/sql/create-procedure.html#syntax
I'm getting this error while trying to connect to a stored procedure as data source:
Unable to complete action
The stored procedure returned no results. The fields don't have column names, or the data in the fields is not a supported data type
But the same stored procedure returns data in database. Any idea on this?
Please try adding the SET NOCOUNT ON code in the beginning of the stored procedure.
Something like
CREATE PROCEDURE [dbo].[ZZZ_THIS_IS_MY_SP]
#p INT
AS
BEGIN
SET NOCOUNT ON
DECLARE #Var1 NVARCHAR(20)
DECLARE #Var2 DATETIME
-- All other instructions...
END
Enviroment:
DB2 Version 11.1,
OS - Linux
How to get the result table of stored procedure into a temp table?
The table and the result have the same table configuration (firstColumn int, secondColumn nvarchar(255))
I'm assuming your stored procedure returns an open cursor, so you want to consume that cursor, inserting its contents into a session table (declared global temporary table) on Db2-LUW.
In addition to fetch and insert statements, you need to understand the following statements:
associate result set locator ... with procedure ...
allocate ... cursor for result set ...
Here is a deliberately artificial example of a nested stored procedure, which shows fetching a result-set from a nested procedure into a session table. The purpose is to show how the syntax works, rather than to do anything useful with data (as the net effect can be equally met by a simple catalog query in this case). This example can be run at the Db2 command-line (for example at the bash shell, after you connected to a database with appropriate permissions):
update command options using s on ;
--#SET TERMINATOR #
create or replace procedure alltabs
dynamic result sets 1
language sql
specific alltabs
begin
declare v_cur cursor with return to caller for select tabschema,tabname,type from syscat.tables ;
open v_cur;
end#
declare global temporary table session.thetables(tabschema varchar(128), tabname varchar(128))
not logged with replace on commit preserve rows #
create or replace procedure populate_dgtt()
language sql
specific populate_dgtt
begin
declare v_rs result_set_locator varying;
declare v_tabschema varchar(128);
declare v_tabname varchar(128);
declare v_type char(1);
declare sqlstate char(5) default '00000';
call alltabs;
associate result set locator (v_rs) with procedure alltabs;
allocate v_rscur cursor for result set v_rs;
fetch from v_rscur into v_tabschema, v_tabname, v_type;
while ( sqlstate = '00000') do
if v_type='V' and v_tabschema='SYSSTAT'
then
insert into session.thetables(tabschema,tabname) values (v_tabschema, v_tabname);
end if;
fetch from v_rscur into v_tabschema, v_tabname, v_type;
end while;
return;
end#
call populate_dgtt()#
select rtrim(Tabschema)||'.'||rtrim(tabname) from session.thetables #
Can a WHENEVER NOT FOUND Handler be used when there are no rows in a FOR loop?
I'm writing a template stored procedure generator as part of a 2E model transformation. I have thousands of 2E functions that I will need a stored procedure format and I'm trying to find the best and most efficient general case template for each type of 2E function.
This is my template proceedure
CREATE PROCEDURE SP_M3_000TSG (
IN HONB DECIMAL(9, 0)
, OUT ABCD CHAR(3) DEFAULT ' '
, OUT EECD CHAR(6) DEFAULT ' '
, OUT RTN CHAR(7) DEFAULT NULL
)
LANGUAGE SQL
PROGRAM TYPE SUB
-- #######################################################################
-- # SP_M3_000TSG
-- #######################################################################
BEGIN
DECLARE SQLCODE INTEGER DEFAULT 0;
DECLARE SQLSTATE CHAR(5) DEFAULT '00000';
M3_INIT:BEGIN
-- do some init stuff
END M3_INIT;
FOR M3_000TSG
**declare WHENEVER NOT FOUND **
AS CUR_ECDQREL1 CURSOR
FOR
SELECT * FROM ECDQREL1 WHERE DQHONB = HONB
DO
do some stuff;
END FOR;
GO TO M3_EXIT;
M3_NO_ROWS: BEGIN
do some stuff for no rows;
END M3_NO_ROWS;
M3_EXIT: BEGIN
do some stuff;
RETURN;
END M3_EXIT;
END
With current versions of Db2, you cannot use WHENEVER NOT FOUND syntax inside SQL-PL procedures.
Instead, you can use this syntax only in embedded-SQL programs where the pre-compiler acts on it.
In SQL-PL procedures, you can either declare a handler for NOT FOUND, or you can code checks for SQLCODE 100 or SQLSTATE '02000' .
Problem that I was facing is that I have to call one stored procedure from another stored procedure in DB2 database. Kind example that I am giving right below.
I have one stored procedure:
CREATE OR REPLACE PROCEDURE Proc1()
IS
Declare myName in varchar;
BEGIN
Select fname into myName from student where fname='x'; // is returning unique value
-- here call anoher proc2
END;
Now so this proc1 procedure is going to call this proc2 procedure.
Now I have second stored procedure:
CREATE OR REPLACE PROCEDURE Proc2(Name in varchar)
IS
BEGIN
-- do anything
END;
I solved this problem,
So solution is like If we want to execute proc using sql command then syntex is like below,
call Proc2('My Name');
We can use this same approach inside our proc also.
For that we have to follow some steps. Lets say that our above sql call is statement that we want to execute. we are going to convert that statement into String and pass necessary parameter by concating variable values. Then execute statement.
CREATE OR REPLACE PROCEDURE Proc1()
IS
Declare myName in varchar;
-- stmt variable is to execute our proc
STMT VARCHAR(4000);
BEGIN
Select fname into myName from student where fname='x'; // is returning unique value
-- this is our logic
STMT :='call Proc2('||myName||')';
EXECUTE IMMEDIATE STMT;
END;