Mysql
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Show 2nd Dropdown based on First Drop Down PHP JS
PHP/HTML <select id=\"n\" name=\"userListingCateory\"> <optiondisabled=\"disabled\">Category...</option>[详细]
2023-04-13 04:50 分类:问答Codeigniter single site log on
I am trying to have it so if I log on from 1 part of my site, it will log on to the other parts also.[详细]
2023-04-13 04:45 分类:问答Starting the AUTO_INCREMENT with zero
I need some help with MySQL. I have id col开发者_JAVA百科umn on my news table with AUTO_INCREMENT and as usually it assign id=1 for the very first news, id=2 for the second and etc. But I want it to s[详细]
2023-04-13 04:43 分类:问答MYSQL Left Join Or Get value from Subquery if the value exists
I have the below query and it works perfect , no issues SELECT description category, details, created_by,[详细]
2023-04-13 04:37 分类:问答