1
vote
1answer
23 views

MySQL Cursor Batching Process

I have a cursor in MySQL and what I want to do is rather than having an enormous cursor loop that can be up to 4000+ users in size, do it smaller batches so that the MySQL engine doesn't suffer. I ...
0
votes
0answers
12 views

How to Improve mySQL Function

I have a Stored Function and I would like to know if this can be improved by anyone better than me. (i'm 2 weeks in Stored Procedures) This accepts a DELIMITER and a string to "clean up". The idea is ...
0
votes
0answers
10 views

Best way to set up a Master Master Replication when one goes offline (Multi Writer)

I have setup a master master replication but as its (multi writer) there are issues with keeping it synchronised. I have went through this video Percona Multi Master Hazards After watching this ...
0
votes
2answers
44 views

Converting MSSQL Stored Procedure to MySQL - Syntax Error

I am converting a MSSQL Stored Procedure to MySQL, and am running into a problem. Maybe it's because I have been staring at the code for so long, but I can't seem to figure it out: CREATE PROCEDURE ...
0
votes
0answers
56 views

Multiple SELECT subqueries in an INSERT statement in a stored procedure

So I had the following (genericized), which works just fine for me (barring errors in making the example generic) : DELIMITER // CREATE PROCEDURE stored_proc(IN val1 INT, IN date1 DATETIME, IN date2 ...
0
votes
1answer
33 views

How to perform a while loop on the query result

I created a trigger AFTER an UPDATE of a column in a MySQL database. When the trigger detects a certain value, it should perform some actions. This is what I have at the moment and is working fine. ...
0
votes
1answer
30 views

Error while creating procedure

This is my procedure: DELIMITER $$ CREATE PROCEDURE sp_test_final6() BEGIN INSERT INTO ...
-1
votes
1answer
46 views

My auto increment primary key is not automatically incrementing

I have the following database Whenever I try inserting values in the database I get the following error. Duplicate entry '0' for key 'PRIMARY' This means ID is not incrementing automatically. I ...
0
votes
1answer
45 views

“Access denied for user” error when creating a procedure

When I request my database server (MySQL), with "show grants for current_user" I notice that I have the grant to execute procedure: SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, LOCK ...
0
votes
0answers
32 views

Sorting the view on which the stored procedure runs

I want to sort the view on a particular column before my stored procedure runs. Is there a way to do this through the stored procedure? Can anyone show me a MySQL example? This is what the stored ...
0
votes
1answer
142 views

Rollback parent procedure on failure in MySQL

I have the following two procedures on my server: CREATE DEFINER=`someone`@`localhost` PROCEDURE `NewMagnet`( IN `nick` VARCHAR(32), IN `tth` CHAR(39), IN `name` TINYTEXT, IN ...
0
votes
0answers
142 views

How can I create a view in a stored procedure on MySQL?

I am trying to dynamically create views based on an SQL query and have a trigger recreate them when the fields in the view are to change. When I call the procedure I end up with a permission denied ...
0
votes
1answer
109 views

How do I access a result set from a StoredProcedure… in another StoredProcedure

I have a non-trivial SELECT statement and I don't want to write it twice (standard SW development considerations). I want to use the results in two stored procedures. I am imagining something like ...
0
votes
0answers
58 views

Dynamic Query creation by looping through Query-Result?

after my first question regarding pivoting a table (here) got great answers I'm now struggling with how to adapt this to variable table sizes. I need something like a "FOR EACH IN" which creates a ...
0
votes
3answers
87 views

Inner Join Table (Mapping table)

this is first time i am try mapping table in mysql i write this procedure but not work ? whats wrong ? DELIMITER $$ CREATE DEFINER=`root`@`localhost` PROCEDURE `spr_GetInformation`( ...
-1
votes
1answer
52 views

delete in stored procedure [closed]

i am write this stored procedure to delete one row DELIMITER $$ CREATE DEFINER=`root`@`localhost` PROCEDURE `spr_StdDelete`(IN ID INT) BEGIN DELETE FROM students WHERE ...
1
vote
2answers
1k views

How long will a temporary MEMORY table persist if I don't drop it (MySQL)

I'm using a recursive stored procedure in MySQL to generate a temporary table called id_list, but I must use the results of that procedure in a follow up select query, so I can't DROP the temporary ...
1
vote
1answer
614 views

Recursive Query in MySQL using stored proceedure and CURSOR

I'm expanding our user/group system to allow for dynamic groups which are made up of other groups members. I have three tables users, groups, and relationships. For simplicity sake, lets say users ...
1
vote
0answers
91 views

Prepared statement execution with variable number of parameters to be bound

Some stored procedures I work with need to interpolate WHERE criteria based on if procedure input parameters have been supplied. To avoid potential injection points, I'd like to utilize parameter ...
1
vote
2answers
52 views

How to fill a tabe automatically with a procedure in MySQL

I have a very big table for users as below: CREATE TABLE `karbar` ( `uid` mediumint(8) unsigned NOT NULL AUTO_INCREMENT, `email` varchar(70) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, ...
1
vote
1answer
659 views

MySQL Subquery returns more than one row

I have a table namely tbl_plays. It has the following columns and data id(PK)| gameid | drawid | etc ---------------------------------------------- 1 | 1509 | 73 | ...
1
vote
1answer
115 views

MySQL: Why am I getting this warning?

I am calling the stored procedure below, and get this warning, is this warning a false positive or is my query unsafe? 1 queries executed, 1 success, 0 errors, 1 warnings Query: call ...
1
vote
1answer
248 views

column auto updated after 24 hours in mysql

i have a table T1 with column : Name State time mon 1 2014-01-09 11:23:00 tue 0 2014-01-07 14:40:00 wed 2 2014-01-08 09:23:00 thu ...
2
votes
1answer
166 views

How to call stored procedure inside trigger?

I have made stored procedure that will update product quantity as per product id. That works fine for me. Following is code : DELIMITER $$ CREATE DEFINER=`root`@`localhost` PROCEDURE ...
5
votes
2answers
217 views

Optimize queries from MySQL SP/Triggers/Functions

I have to investigate a MySQL Production server,While investigating I found a DELETE query in "SHOW PROCESSLIST" which was taking more than 400 second in preparing state, I tried to find the query in ...
0
votes
1answer
472 views

Move data from one table to another

How do I retrieve data from one MySQL table and store the data into another database table on the same server. I have tried this code but keep getting errors: CREATE PROCEDURE `ProfusionTest` () ...
1
vote
1answer
1k views

Stored Procedure Performance using Temporary Tables

I have the following Stored Procedure I would like to improve the performance of DELIMITER $$ CREATE PROCEDURE NEXT_UNIT_OF_WORK ( IN batchId INT, IN size INT ) BEGIN start transaction; ...
1
vote
0answers
105 views

Cumulative Function in MySQL

i have a problem creating cumulative function in mysql database. let say i have a stored procedure which getting data and counting quantity/sum_quantity example A table consist of consumer goods ...
0
votes
0answers
167 views

zero rows fetched, selected, or processed Mysql

Help me to solve this problem error call cd3(@VAR) 0 row(s) affected, 1 warning(s): 1329 No data - zero rows fetched, selected, or processed 0.000 sec delimiter ;; create procedure cd3(out var ...
0
votes
2answers
74 views

Stored Procedure - MySQL

I am developing a database for an application. I have to create stored procedure to tables, so that programmers can simply call the stored procedure to implement the functions. I have a doubt to ...
0
votes
1answer
112 views

MySql - is possible that performance issues are caused by dynamic SQL?

We have this MySQL SP, which uses dynamic SQL. It seems it does NOT perform well under load. It is possible that this SP becomes slow under load because it uses dynamic SQL? Can dynamic SQL cause ...
0
votes
1answer
49 views

Can MySql nested SP be a bottleneck?

We have this MySQL SP, which calls a nested SP. It seems it does NOT perform well under load. It is possible that this SP becomes slow under load because it calls a nested SP and uses temporary ...
0
votes
1answer
216 views

MySQL: all stored procedures deleted?

Started seeing some strange errors from dependent processes this morning. After some digging it appears that the file /mysql/proc.MYD is set to zero length. The file /mysql/db.MYD appears to be ...
0
votes
0answers
124 views

Stored procedure to replace a string in an entire database

I am trying to create a procedure to change a string in an entire database... after a lot of searching I have come up with this procedure, but it gives an error. The procedure is: BEGIN declare t, c ...
0
votes
1answer
93 views

Procedure and Automation in Mysql

i have a table with these columns and the values are coming in these tables from a csv file at a regular interval of n minutes ( by cron the load infile command) : ID (PK) status first ...
0
votes
0answers
39 views

Does MySQL have built in support for procedural programming languages made in Python, PHP, Java, etc?

If I understand correctly, Postgresql has built in support so you can write procedures in different languages. But when I look at MySQL I only see a native language, it's own thing. Does MySQL have ...
-1
votes
1answer
30 views

prepare stmt is not working

set @sqlt = concat("select", @rowname_date," from syslog_data.syslogs_index_1 "); prepare stmt from @sqlt; execute stmt; deallocate prepare stmt; gives me a eeror 1064 in the prepare statement? Any ...
0
votes
2answers
1k views

How to create a stored procedure with several delete in(select) statements?

Our database needs to be periodically cleared of certain items that receive a specific flag (A4) on their id. Our application manages stores and all tables are myISAM. The items can be either in the ...
1
vote
1answer
527 views

MySQL possibility to create global routines (stored procedures and/or functions)

Is it possible to somehow define globally available routines? It seems like every routine must be created in a scope of the database. When I tried to create a routine from console (without prior ...
1
vote
0answers
946 views

Does MySQL close cursor if stored procedure encounters an exception?

I've seen two different approaches of cursor handling is MySQL stored procedures. Now I'm curious about their stability, due to potential MYSQLEXCEPTION risks in stored routines. Assuming, that ...
2
votes
0answers
89 views

Why does MySQL force the tradeoff between swallowing errors and leaking commits in transactions?

Referring specifically to the choice of whether to use DECLARE EXIT HANDLER FOR SQLEXCEPTION. If you use it, you swallow errors and there doesn't seem to be any way to access them programmatically, ...
0
votes
1answer
721 views

Stored procedure to handle empty sets

How can I make a stored procedure to print a specific message if an empty set wa returned by the query?
2
votes
1answer
723 views

“Use Database” command inside a stored procedure

I would like to dynamically use a database inside a stored procedure but the use database_name command is not supported inside procedures. What alternatives are there?
1
vote
1answer
2k views

Dynamic SQL is not allowed error for creating function in MySQL

According to this question and answer of Angelo I create a MySQL function as below: DELIMITER $$ CREATE FUNCTION hierarchy_connect_by_parent_eq_prior_id(value INT, reqdTable VARCHAR(50)) RETURNS INT ...
-1
votes
1answer
152 views

Syntax Error in MySQL Stored Procedure [closed]

I facing the issue in executing a SQL Stored Procedure and I got the error message as showing syntax error in my statement, but I couldn't find that, Stored Procedure -- Routine DDL -- Note: ...
1
vote
2answers
266 views

Stored Procedure in MySQL

I am new to MySQL Stored Procedure, in my first attempt I got the following issues, Stored Procedure: Delimiter $$ create procedure accountstatus ( IN inmode varchar(27), IN ...
0
votes
2answers
272 views

MySQL stored procedure create database by month

I'm a systems admin, and I'm not a dba, I'm wondering if I could use MySQL stored procedure to Query main database and move records by month to another database located on the same system. This ...
1
vote
1answer
171 views

Inserting filtered data from one table to another

I need to find the number of employees who are not in all departments. I have one more table T2 in which same department column is present. Now I want to insert only those values of department which ...
1
vote
1answer
588 views

MySQL Workbench Alter Procedure

i have a problem with my workbench program. I use Mac Lion OS X and mysql workbench program. When i want to do any procedure to alter that doesn't work. Which is show to the procedure code i right ...
0
votes
2answers
386 views

create table with date name

I am writing a simple procedure to backup a table- CREATE PROCEDURE daily_backup() BEGIN DECLARE given_date VARCHAR(25); SET given_date = now(); CREATE TABLE given_date LIKE db1.table1; ...