I have tried various modifications to make this work but I can't seem to remove the error. My SQLQuery string is much larger than the one below but same set up. I tried using a CONCAT(' ') statement but had issues. So I tried using this format but still receive the same error. any suggestions?
CREATE DEFINER=`root`#`%` PROCEDURE `stp_Select_GetTbl`(IN strWhereClause
VARCHAR(255))
BEGIN
DECLARE SQLQuery varchar(1000);
SET SQLQuery = '
SELECT `Part Num` AS `PPNumber`,
`Shop Num` as `SOrder`
FROM `track`.`s list` WHERE ';
SET #SQLQuery = #SQLQuery + strWhereClause + '';
PREPARE stmt FROM #SQLQuery;
EXECUTE stmt;
END
ERROR:
`Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '0' at line 1
`
I have tried not declaring SQLQuery... changing varchar size... reorganizing and even using the example below
SET #getList =
CONCAT('SELECT (t1, t2, t3) FROM (SELECT t1, t2, t3) as mainSelect WHERE ', strWhereClause, '');
PREPARE stmt FROM #getList;
EXECUTE stmt;
END
but get error at
.... MySQL server version for the right syntax to use near '0
I need to define a string for my SELECT statement because I create the WHERE clause in my stored procedure.
Related
I want to alter a table and add a column to it if it doesn't already exist. So I populate a variable #row and if it's I want to alter the able as so.
SET #row = (SELECT count(*) FROM information_schema.COLUMNS WHERE TABLE_NAME='tblname' AND COLUMN_NAME='colname' and table_schema='dbname');
IF(#row <1) THEN
ALTER TABLE tblname ADD colname INT;
END IF;
But I am getting a syntax error
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use
near 'IF(#row <1) THEN ALTER TABLE tblname ADD colname INT' at line 1
What am I doing wrong?
In MySQL you need a shell around flow statements like if.
Put a procedure around it and it will work.
You can use prepared statements
IF (#row <1) THEN
SET #lSQL = "ALTER TABLE tblname ADD colname INT";
PREPARE stmt FROM #lSQL;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END IF;
Hope it helps.
I am trying get count value from a table and storing it in a variable using select statement in stored procedure. But when I use following lines of statemnts
DECLARE totalRegister INTEGER;
SET #sqlstmt = CONCAT('SELECT COUNT(DISTINCT(msisdn)) INTO ', totalRegister, ' FROM sm_history.svc_mgmt_', #yesterdayMonth,' WHERE action_type = 1 AND DATE(created) = ', yesterday);
PREPARE statement FROM #sqlstmt;
EXECUTE statement;
DEALLOCATE PREPARE statement;
I get following error on calling the stored procedure
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NULL' at line 1
I further debugged my stored procedure by using Select #sql; and surprised to see it was returning NULL
Edit 1: Variables yesterday and yesterdayDate are returning values correctly so I am sure there is no issue with these variables. The problem is due to totalRegister variable
Luckily I got solution by using hit and trial. Instead of using totalRegister as variable in the CONCAT function replaced it with #totalRegister which caused the stored procedure to work fine.
DECLARE totalRegister INTEGER;
SET #sqlstmt = CONCAT('SELECT COUNT(DISTINCT(msisdn)) INTO #totalRegister FROM sm_history.svc_mgmt_',#yesterdayMonth ,' WHERE action_type = 1 AND DATE(created) = ', "'", yesterday, "'");
PREPARE statement FROM #sqlstmt;
EXECUTE statement;
DEALLOCATE PREPARE statement;
select #totalRegister;
Above thing worked fine. Anyways thanks to all for contribution
I have the following stored procedure:
CREATE PROCEDURE getLastValueAutomaticShelter(IN fieldName varchar(30), position_number INT)
BEGIN
SET #query = CONCAT('SELECT * FROM automatic_changes WHERE',fieldName,'IS NOT NULL AND P_id=?');
PREPARE stmt FROM #query;
SET #position_number=position_number;
EXECUTE stmt USING #position_number;
DEALLOCATE PREPARE stmt;
END
Then I am running it:
mysql> call getLastValueAutomaticShelter('current_level', 500)//
And getting the following error:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near 'NOT N
ULL AND P_id=?' at line 1
Any ideas? Thanks.
You need to add some spaces in there:
SET #query = CONCAT('SELECT * FROM automatic_changes WHERE ',fieldName,' IS NOT NULL AND P_id=?');
/* right ^ here....and ^ here*/
Otherwise your final query might look like this:
SELECT * FROM automatic_changes WHEREcolumnameIS NOT NULL AND P_id='whatever';
You get the idea :)
I have this Stored Procedure below, it works if my PostId is Integer field
and i send postIdList as a comma separated string '1,2,3,4'...
But if I change my PostId to GUID(char(36) it does not work for me.
it gives me an syntax error saying
"Error Code: 1064. You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near '"2d9d3ebc-6c9f-467a-8181-8a38891756b)' at line 1"
CREATE DEFINER=`root`#`%` PROCEDURE `GetComments`(
IN postIdList TEXT
)
BEGIN
set #sql = CONCAT('select * from PostComment where PostId in (', postIdList, ') ');
PREPARE q FROM #sql;
execute q;
END$$
this is how i am calling it
CAll GetComments(
'fff78ee0-396b-4300-952b-eee72d65261a,fff517dc-a7b7-441e-85bb-b5134828c0c9');
Any Ideas how to resolve this?
Your ids are not integers. You need to pass them in with single quotes or do something like this:
set #sql = CONCAT('select * from PostComment where PostId in (''',
replace(postIdList, ',', ''','''),
''') ');
That is, replace each comma with a single quote, comma, single quote. And then put quotes at the beginning and end of the list.
Can anyone tell me why I am getting this error in MySql:
Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NULL' at line 1
Here is my code:
CREATE PROCEDURE `msgBoardGetComments2`(
IN _StoryID INT,
IN _RowNum INT
)
BEGIN
DECLARE _sql VARCHAR(1000);
SET _sql := CONCAT('SELECT c.CommentText, c.CommentDate, a.UserName
FROM comments c
LEFT JOIN accounts a
ON c.UserID = a.UserID
LEFT JOIN stories s
ON c.StoryID = s.StoryID
WHERE c.StoryID = ',_StoryID, '
ORDER BY c.CommentDate DESC
LIMIT 10
OFFSET ', _RowNum);
PREPARE stmt1 FROM #_sql;
EXECUTE stmt1;
END
I believe you may be receiving that error when _RowNum is NULL. If this is the case, you can try adding an IF condition to optionally include the OFFSET _RowNum if the _RowNum is NULL. You can test this by printing your query before execution:
SELECT _sql;
--PREPARE stmt1 FROM #_sql;
--EXECUTE stmt1;
Also, I haven't seen the use of an underscore (_) for variable assignment, perhaps that may also be playing a role in this?