Error on executing proc in mysql insert statement - mysql

I am trying to execute this proc below and I get an error. please can someone bail me out
----
DELIMITER $$
CREATE DEFINER=`root`#`localhost` PROCEDURE `insert_class_code`(p_newS varchar(45), p_designation varchar(45))
BEGIN
SET #table_name = p_designation;
SET #new_supply = p_newS;
SET #sql_text = concat('insert into simsed_',#table_name,' (class) values ',#new_supply) ;
PREPARE stmt FROM #sql_text;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END
----
This is the error i get.
call insert_class_code('supply 3', 'supplier)
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 'supply 3'


Your below line have error:
SET #sql_text = concat('insert into simsed_',#table_name,' (class) values ',#new_supply) ;
Change it with the following code:
SET #sql_text = concat('insert into simsed_',#table_name,' (class) values ("',#new_supply,'")') ;

Related

mysql prepared statement unable to execute. Getting error 1064 in prepared statement

Query is retrieving correct result but in Prepared statement getting error "Error Code: 1064. check the manual that corresponds to your MySQL server version for the right syntax to use near 'INSERT INTO audittrail(BATCHID,IPADDRESS,DATE,LINENAME,ACTION) values (1165' at line 2"
Thanks in advance:-)
CREATE DEFINER = 'root'#'localhost'
PROCEDURE new_procedure()
BEGIN
DECLARE stmt text;
SET #stmt = (SELECT CONCAT('START TRANSACTION; \n', GROUP_CONCAT(objdata SEPARATOR ';\n'),';\nCOMMIT; \n DELETE FROM qry_obj_dtl where id in (',GROUP_CONCAT(ID SEPARATOR','),');') AS objData1 FROM qry_obj_dtl);
SELECT #stmt;
PREPARE param_stmt FROM #stmt;
EXECUTE param_stmt;
DEALLOCATE PREPARE param_stmt;
END

MySQL Stored Procedure with Prepared Statement does not work

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 :)

A loop for adding multiple columns into a table in mysql

The purpose of the following loop is to create 10 columns and name them as'col_20','col_21'...
.This loop could be created but a syntax error occurred when I tried to run it.
This is what got after I called MYLOOP() in Mysql
"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"
DELIMITER $$
CREATE PROCEDURE MYLOOP()
BEGIN
DECLARE i int;
DECLARE str varchar(255);
SET i = 20;
WHILE i < 30 DO
SET str = CONCAT('col_',i);
SET #sql = 'ALTER TABLE TEST ADD '+ str + ' INT;';
SET i = i + 1;
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END WHILE;
END $$
DELIMITER ;
CALL MYLOOP();

delete from table with stored procedure using concat

Quick question,
using the code bellow, im able to use a sp to perform a delete from any table, but i dont know how to use concat to delete with the where statement.
CREATE DEFINER = `root`#`%` PROCEDURE `fn_del_t`(in t_name varchar(50), isrv char(50))
BEGIN
set #table_name = t_name;
set #iserver = isrv;
# not working with where.
set #sql_text = concat('delete from ',#table_name, 'where iserver =',#iserver);
# ---- not working with where
prepare stm from #sql_text;
execute stm;
DEALLOCATE prepare stm;
END;
call fn_del_t('the_table','localhost');
The error im receiving is:
[SQL] call fn_del_t('the_table','localhost');
[Err] 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 'iserver =localhost' at line 1
Sorry for my english.

Able to solve with:
CREATE DEFINER = `root`#`%` PROCEDURE `fn_del_t`(in t_name varchar(50), isrv char(50))
BEGIN
set #table_name = t_name;
set #iserver = isrv;
#
set #sql_text = concat("delete from ",#table_name," where iserver ='",#iserver,"'");
prepare stm from #sql_text;
execute stm;
DEALLOCATE prepare stm;
END

MySQL how do you make a prepare statement with a variable?

This is the stored procedure I'm trying to use
DELIMITER ##
CREATE PROCEDURE exportFile()
BEGIN
DECLARE filename VARCHAR(255);
SET filename = CONCAT('~/Sample',NOW(),'.csv'));
SET #outfilestmt = concat('SELECT * INTO OUTFILE ',"'", filename,"'",' FROM Results') ;
PREPARE stmt FROM #outfilestmt;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END ##
DELIMITER ;
This is the error I get
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 ');
SET #outfilestmt = concat('SELECT * INTO OUTFILE ',"'", filename,"'",' FROM R' at line 6
Desired Result:
call exportFile
--~/Sample2012-03-14-10:42:51.cvs
call exportFile
--~/Sample2012-03-14-10:42:52.cvs
call exportFile
--~/Sample2012-03-14-10:42:53.cvs

A semicolon is missing after
SET filename = CONCAT('~/Sample',NOW(),'.csv'))
and one brace is too much (also noted by Devart. Thanks). Change it to
SET filename = CONCAT('~/Sample',NOW(),'.csv');
Tested it to be sure. Works!