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Select the MYSQL column type bitsCN.com
Select the MYSQL column type
When creating a table, how does one determine which types to use? This section describes the factors that should be taken into account before making a decision. The most "common"
mysql| Data | Database summary
In this chapter, we will focus on how to work with the MySQL database using Structured Query Language (SQL).
(2002-08-29-14:11:10)
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18.2.1 MySQL server has gone away errors related to Lost connection to server during query.
The most common cause of the MySQL server has gone away error is that the server times out and closes the connection. By default, if nothing happens, the
Select the MYSQL column typeWhen creating a table, how does one determine which types to use? This section describes the factors that should be taken into account before making a decision. The most "common" column type is the string type. Any data
MySQL date type: Date Format, storage space occupied, and date range comparison.Date type storage space date format date range-----------------------------------------------------------------------------------Datetime 8 bytes YYYY-MM-DD hh: mm: SS 10
MySQL date data type and time type usage summary MySQL date type: Date format, storage space occupied, date range comparison.
Date type storage space date format date range
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Index optimization for mysql performance optimization,
As a free and efficient database, mysql is the first choice. Good secure connection, built-in query parsing, SQL statement optimization, use read/write locks (refined to rows), transaction
Replace and regexp usage0 Comments | This entry was posted on Apr 08 2010.
Mysql replace usage
1. replace
Replace into table (id, name) values ('1', 'A'), ('2', 'bb ')
This statement inserts two records into the table. If the primary key id is 1 or 2
Use of Replace and regexp0 Comments | This entry is posted on APR 08 2010
MySQL Replace usage
1.replace into
Replace into table (Id,name) VALUES (' 1′, ' AA '), (' 2′, ' BB ')
The purpose of this statement is to insert two records into table tables.
Set Change root passwordNote: How to change the root password, about the root user is the MySQL Super administrator user, it is similar to the root user inside the Linux operating system, to distinguish between the root of MySQL and the system root
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