information-schema

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Poor performance of INFORMATION_SCHEMA.key_column_usage in MySQL

I\'m running version 5.5.11 of MySQL and the performance when querying the INFORMATION_SCHEMA.key_column_usage table is really bad.[详细]

2023-04-01 08:20 分类：问答
Determine InnoDB FK Constraints without information_schema

I\'m writing some code to inspect a MySQL database structure, and need information about Foreign K开发者_StackOverflowey constraints (on InnoDB tables).[详细]

2023-03-28 22:34 分类：问答
Information schema and Primary Keys

How do I just print out a \'primary key\' for the column with the primary key? I get \'primary key\' for all the columns if the table has a primary key, instead of the one column with the primary ke[详细]

2023-03-15 14:42 分类：问答
LinqToSQL definition for INFORMATION_SCHEMA.ROUTINES

I\'ve been able to successfully create definitions for Tables and Views.I\'m trying to finish a Class definition for Routines.I\'ve compared my property definitions to the information at MSDN and it l[详细]

2023-03-12 06:47 分类：问答
Explanation on INFORMATION_SCHEMA.RIGHTS

What is the purpose of this table? From it\'s name, could we assume that it lists all rights assigned to each user?[详细]

2023-03-09 05:59 分类：问答
Invalid object name 'information_schema.columns' in SQL Server

The following query used to 开发者_C百科work: select * from information_schema.columns where column_name like ...[详细]

2023-03-06 03:14 分类：问答
Show only user created tables in MySQL?

Is there a SQL command by which I can display only the tables created by users and excluding those present by defau开发者_运维百科lt in the MySQL database?This about wraps it up:[详细]

2023-03-05 10:41 分类：问答
Find a specific column entry in an unknown table in a database?

I\'m aware of this topic ( Find a specific column in an unknown table in a database? ) and my problem is quite similar. The query 开发者_StackOverflow中文版I need is quite similar to this one (I think[详细]

2023-03-01 20:32 分类：问答
SQL - INFORMATION_SCHEMA for All Databases On Server

INFORMATION_SCHEMA.TABLES or INFORMATI开发者_Python百科ON_SCHEMA.COLUMNS work for only specified databases.[详细]

2023-02-28 22:13 分类：问答
MySQL query to show difference between development and production schema

I would like to have a query using the schema database in MySQL that shows the difference between the columns, triggers and stored procedures between two database schema\'s: production and developmen[详细]

2023-02-25 09:01 分类：问答