I have a stored procedure I've started coding and need to return a value. In SQL Server I could just do a SELECT of the variable to return it. However this does not seem to work with Teradata and have not found a similar example on how to do this. Here is my stored procedure:
REPLACE PROCEDURE sp_Get_MyValue()
BEGIN
DECLARE mytestvar VARCHAR(40);
SELECT mycolumn INTO mytestvar FROM MyTable;
SELECT mytestvar;
END;
I get this error:
STATEMENT 2: REPLACE failed. Failed [5526 : HY000] Stored Procedure
is not created/replaced due to error(s).{Nested Failure Msg [5526 :
HY000] SPL1045:E(L10), Invalid or missing INTO clause.}
I also tried adding an OUT variable to the procedure but that did not work either:
REPLACE PROCEDURE sp_Get_MyValue(mytestvarout VARCHAR(40))
BEGIN
DECLARE mytestvar VARCHAR(40);
SELECT mycolumn INTO mytestvar FROM MyTable;
END;
With this error:
Executed as Single statement. Failed [5531 : HY000] Named-list is not
supported for arguments of a procedure. Elapsed time = 00:00:00.079
To return a single row you must define and OUT-variable and assign a value to it:
REPLACE PROCEDURE sp_Get_MyValue(OUT mytestvarout VARCHAR(40))
BEGIN
DECLARE mytestvar VARCHAR(40);
SELECT mycolumn INTO mytestvar FROM MyTable;
SET mytestvarout = mytestvar;
END;
To return a result set you need to define a kind of dummy-cursor (blame Standard SQL :-)
Returning Result Sets from a Stored Procedure
Related
Create a procedure named 'payment_count' which accepts one output parameter p_count with number as its data type. This procedure should print the count of successful payments (response_msg as 'Successful') with alias name as 'successful_payment_count'.
Hints: Procedure name : payment_count
Output parameter : p_count
Table used : payment_authorization
Function used : count
create or replace procedure payment_count(p_count output number)
as
begin
select count(response_msg='Successful') into successful_payment_count from payment_authorization;
return successful_payment_count;
end;
/
schema payment_authorization
Is this a task in an exam?
Sounds so... anyway:
You have to change keyword output to OUT, change the COUNT(response_msg='Successful') to COUNT(*) and add response_msg='Successful' to the where clause of the query.
create or replace procedure payment_count(p_count out number)
as
begin
select count(response_msg) as successful_payment_count
into p_count
from payment_authorization
where response_msg = 'Successful';
end;
/
i want to get count of no.of rows present in table which i pass at runtime to a function.
i have created a procedure and function to execute dynamic queries. function will not allow dynamic query because i am calling procedure from function.
that procedure having dynamic query.
///////procedure///////
CREATE PROCEDURE bizopsgolddev.`test1`(tbnm varchar(100))
begin
declare sql_text varchar(200);
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
SELECT CONCAT(sql_text, ' is not valid');
END;
set sql_text=concat('select count(*) from ',tbnm);
SET #SQL := sql_text;
PREPARE stmt FROM #SQL;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
end;
//////function//////
DROP FUNCTION IF EXISTS xyz;
CREATE FUNCTION `xyz`(tname varchar(100)) RETURNS int(11)
begin
declare val int;
call test1(tname);
return 1;
end;
if i execute this //select xyz('axpdc')// it should return rows count
can any one tell me how can i get count by passing table name to function(in mariadb only)
As I understand the question, the solution would be a function that returns the row count of a table with it's name passed to the function as a parameter.
I think this could be done by querying the information_schema database in MariaDB. A function could look like this:
CREATE DEFINER = 'yourUsername'#'192.168.%'
FUNCTION testDataBase.fn_GetRowCount(tableName VARCHAR(128))
RETURNS int(11)
BEGIN
-- This could be a parameter if need it to be.
DECLARE databaseName varchar(40) DEFAULT 'testDataBase';
DECLARE result int DEFAULT -1;
SELECT t.TABLE_ROWS INTO result
FROM information_schema.TABLES t
WHERE t.TABLE_NAME = tableName
AND t.TABLE_SCHEMA = databaseName;
RETURN result;
END
In order for this to work the user mentioned as the definer must have read privilege to the TABLES table in the information_schema database, otherwise you might get an error (tbh, I don't know if this is necessary).
There is a lot of useful information to be grabbed from the information_schema database.
When I am running this Netezza stored procedure, I am getting an error
attribute 'SOME_VALUE' not found
As per requirement I have to get value from one table (TABLE_A) and insert into another table (TABLE_B).
This is the procedure:
create or replace procedure my_proc()
returns boolean
execute as owner
language NZPLSQL
as
BEGIN_PROC
declare rec RECORD ;
BEGIN
for rec in SELECT * from TABLE_A loop
EXECUTE IMMEDIATE
'INSERT INTO TABLE_B(COLUMN_B)
values( '|| rec.COLUMN_A_OFTABLE_A || ')';
END LOOP;
END;
END_PROC;
execute my_proc()
Here below, I am able to insert a string. But I need to insert different value depending on other table as I mentioned above.
EXECUTE IMMEDIATE 'INSERT INTO TABLE_B(COLUMN_B) values( ''Y'');';
When building a string that you are going run EXECUTE IMMEDIATE against, you have be careful to have everything quoted properly. In your case it's thinking that it needs to treat SOME_VALUE as an attribute/column, and it can't any column with that name.
Wrap your column reference in quote_literal() and it will interpret the contents of your column and quote-escape it properly for you.
create or replace procedure my_proc()
returns boolean
execute as owner
language NZPLSQL
as
BEGIN_PROC
declare rec RECORD ;
BEGIN
for rec in SELECT * from TABLE_A loop
EXECUTE IMMEDIATE
'INSERT INTO TABLE_B(COLUMN_B)
values( '|| quote_literal(rec.COLUMN_A_OFTABLE_A) || ')';
END LOOP;
END;
END_PROC;
You can find some more information in the documentation here.
Note: I am assuming that you have some more complicated logic to implement in this stored procedure, because looping over row by row will be much, much slower that insert..select. Often by an order of magnitude.
I have a Procedure like this,
create or replace
PROCEDURE SP_PROOF
( proof_id IN NUMBER
, Type1 IN VARCHAR2
, StatementType IN NUMBER
, Resultset OUT NUMBER
) AS
BEGIN
IF StatementType = 1 Then
INSERT INTO ID_Proof (proofid,Id_type)
VALUES (proof_id, Type1);
ELSIF StatementType=2 THEN
SELECT proofid,Id_type Into Resultset FROM ID_Proof;
ELSIF StatementType=3 THEN
UPDATE ID_Proof SET Id_type = Type1 WHERE proofid = proof_id;
ELSIF StatementType=4 THEN
DELETE FROM ID_Proof WHERE proofid = proof_id;
end if;
end;
Im getting an error like this,
Error(14,1): PL/SQL: SQL Statement ignored
Error(14,64): PL/SQL: ORA-00947: not enough values
Please help me to correct the error.
Line 14 is:
SELECT proofid,Id_type Into Resultset FROM ID_Proof;
You are selecting two values, proofid and Id_type, into a single scalar variable Resultset. But you also have no filter, so even if you changed that to select a single value then you'd get a too-many-rows error if there was more than one row in the table (and no-data-found if the table is empty).
It isn't clear what you want to happen; perhaps you want select id_type into resultset from id_proof, but from the parameters id_type is a string - so selecting that into a number variable is likely to fail too. Or perhaps you want all IDs for the specified type, in which case the type of result set would need to be a table type or a ref cursor.
Having separate procedures and functions would be probably be clearer, too.
am creating a package in pl/sql . with in this i declared the ref cursor . With in procedure am using select statement with multiple column name . but am not able to get the result.
here i attached my code. Help me to correct the error. Am new to pl/sql
code
CREATE OR REPLACE PACKAGE types AS
TYPE cursor_type IS REF CURSOR;
END Types;
/
CREATE OR REPLACE
PROCEDURE get_CDR_rs (p_no IN zkv.FLD_callingPartyNumber%TYPE,
CDR_recordset OUT SYS_REFCURSOR) AS
BEGIN
OPEN CDR_recordset FOR
SELECT FLD_callingPartyNumber,
FLD_dateTimeConnect
FROM CISCOCUIC_TBL
WHERE FLD_callingPartyNumber= p_no
ORDER BY FLD_callingPartyNumber,;
END get_CDR_rs;
/
SET SERVEROUTPUT ON SIZE 1000000
DECLARE
l_cursor SYS_REFCURSOR;
l_callingPartyNumber zkv.FLD_callingPartyNumber%TYPE;
l_dateTimeConnect zkv.FLD_dateTimeConnect%TYPE;
BEGIN
LOOP
FETCH l_cursor
INTO l_callingPartyNumber, l_dateTimeConnect;
EXIT WHEN l_cursor%NOTFOUND;
END LOOP;
CLOSE l_cursor;
END;
/
Error
9/41 PL/SQL: ORA-00936: missing expression
5/5 PL/SQL: SQL Statement ignored
First thing is there is a syntax error in the procedure. It should be
CREATE OR REPLACE
PROCEDURE get_CDR_rs (p_no IN zkv.FLD_callingPartyNumber%TYPE,
CDR_recordset OUT SYS_REFCURSOR) AS
BEGIN
OPEN CDR_recordset FOR
SELECT FLD_callingPartyNumber,
FLD_dateTimeConnect
FROM CISCOCUIC_TBL
WHERE FLD_callingPartyNumber= p_no
ORDER BY FLD_callingPartyNumber; -- there was a comma which is not required or you
-- missed a column
END get_CDR_rs;
/
Secondly where is get_CDR_rs being called to retrieve the results?
Thirdly why do you need the following? because you are using sys_refcursor
CREATE OR REPLACE PACKAGE types AS
TYPE cursor_type IS REF CURSOR;
END Types;
/
If you would like to see the results of your procedure which returns sys_refcursor, do as follows
variable rset refcursor;
DECLARE
p_no zkv.FLD_callingPartyNumber%TYPE;
BEGIN
p_no := '123';
get_CDR_rs (p_no, :rset);
END;
/
print rset