MySQL allows you to quickly delete all tables without deleting databases.
This example describes how MySQL can quickly delete all tables without deleting databases. We will share this with you for your reference. The details are as follows:
If you
MySQL drop database deleting databases and creating databases Create database
DROP DATABASE [IF EXISTS] Db_nameThe drop database removes all tables from the database, and deletes the databases. If you execute a DROP database on a symbolic link
Use the mygeneration Automatic Generation Code tool to obtain the Database Name and data table name of all Oracle databases. The procedure is as follows:1. Set the database link string provider = oraoledb. oracle.1; Password = mypassword; persist
Oracle 10g adds the drop database command, which makes it much easier for us to delete the databases. However, there are certain restrictions on the drop database:Some errors1.ora-01586:database must is mounted EXCLUSIVE and not open for this
As a database developer, you are responsible for creating and managing databases and tables. When creating a table, maintaining data integrity is important to you. To ensure that the data in the table is accurate, consistent, and reliable, SQLServer
Search for keywords from all tables and all databases
-- 1 simple query: Search for keywords in all tables
Declare @ STR varchar (100)Set @ STR = 'A' -- string to be searched
Declare @ s varchar (8000)Declare TB cursor localSelect 'if exists
Easyui ComboBox drop-down box The default initial value is NULL, the following is the way to initialize the default value after loading the data remotely, and to keep the value in the top of the drop-down box.The current requirement is to add the
Different storage engines also have different backup support. MyISAM storage engine can use the LVM snapshot function to implement hot backup. If there is no LVM, only warm backup can be implemented.
Different storage engines also have different
I. Backup Type and other description: 1.1 whether the server will continue to provide service points during Backup:
Hot Backup: read/write during Backup is not affected
Warm backup: only read operations can be performed during Backup
Cold backup:
Mysql backup and database restoration mysqldump instance and parameter description mysqldump
BitsCN.com
We will certainly encounter the situation of backing up the database and restoring the database during the operation of the project. we generally
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