Mysql
Is it possible to use more than one related queries together in MySQL or PostreSQL? [duplicate]
This question already has answers here: 开发者_JS百科Insert into select and update in single query[详细]
2023-04-13 06:06 分类：问答replace while ($row=mysql_fetch_array($res)) loop with for loop
I was wondering how I could replace this loop: while ($row=mysql_fetch_array($res)) by an for loop. I want to know, because on my 开发者_运维百科website, I want to show the data on my website, but th[详细]
2023-04-13 05:48 分类：问答MySql constraints don't work on mysql Ubuntu
I\'ve installed mysql in my ubuntuusing the classic command: apt-get install mysql-server And to my surprise it is a mysql which doesnt respect any constraint i write with \"check\".[详细]
2023-04-13 05:39 分类：问答MySQL: Query to Search All possible words
I have a form with an input box where user can 开发者_Go百科specify their names, names can be two or more words eg John Smith or John Michael Smith.[详细]
2023-04-13 05:32 分类：问答How to define empty polygon for spatial column in MySQL?
I\'m trying to create spatial开发者_JS百科 index over table column (bbox polygon default NULL) but get error: All parts of a SPATIAL index must be NOT NULL.[详细]
2023-04-13 05:31 分类：问答Adding up total of mysql_num_rows in a while loop
For example I have a mysql_num_rows results of 4,8,15,16,23,42 in a query that is inside a while loop of another query. My question is how can I total all the results inside that while loop? 开发者_Go[详细]
2023-04-13 05:26 分类：问答MYSQL Join Confusion
I 开发者_开发技巧have this Exams table and Responses table. I want to fetch all records where Exam for exam = 000663[详细]
2023-04-13 05:17 分类：问答Which type of join do I need?
I have 2 tables, contracts and salesmen. Recently I\'ve discovered some errors in the data, some contracts have salesid\'s not found in \'salesmen\', I suspect an accidental deletion or an input error[详细]
2023-04-13 05:15 分类：问答Tool to migrate from DB2 to MySQL
There was a MySQL migration toolkit can migrate from DB2 to MySQL, bu开发者_运维百科t the MySQL site says it\'s not available any more. However, I can\'t find a substitute for that in MySQL workbench[详细]
2023-04-13 05:10 分类：问答Error reading text file in php
I have a file I need to import into a database. (My database is good, I can connect and I can add). Now my problem is for some reason nothing gets inserted.[详细]
2023-04-13 05:06 分类：问答
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