mysql select output format

Detailed description of mysql to obtain the current date and format, detailed description of mysql current date MySQL obtains the current date and Date Format Get system date: NOW () Format date: DATE_FORMAT (date, format) Note: date: Time

Students with MySQL experience may encounter SQL slow query scenarios in the actual project, some scenarios are easy to locate the problem (such as a single table operation with slow query SQL, carefully check SQL statements are usually easy to

MYSQL gets the current date and date formatGet system Date: Now ()Formatted Date: date_format (date, format)Note: Date: Time fieldFormat: Date formatsReturns the system date, output 2009-12-25 14:38:59Select Now ();Output 09-12-25Select Date_format (

MYSQL gets the current date and date formatGet system Date: Now ()Formatted Date: date_format (date, format)Note: Date: Time fieldFormat: Date formatsReturns the system date, output 2009-12-25 14:38:59Select Now ();Output 09-12-25Select Date_format (

[MySQL Notes] SQL optimization tool-explain the output format of the explain command If you have experience using MySQL, you may encounter slow SQL queries in your project. In some scenarios, you can easily locate the problem (for example, when a

One, MySQL installationInstall MySQL under CentOS Please open: http://www.centoscn.com/CentosServer/sql/2013/0817/1285.htmlIi. several important directories of MySQLMySQL installation is not as if SQL Server is installed by default in a directory,

Oracle and Mysql time formatting 1. Oracle formatting time: Oracle obtains the current date and Date Format Get system date: SYSDATE () format Date: TO_CHAR (SYSDATE (), 'yy/MM/DD HH24: MI: SS) or TO_DATE (SYSDATE (), 'yy/MM/DD HH24: MI: SS) format

MySQL Format statement specificationHow do I log into your database?Example!If you are compiling the installation of the flowers, then you have to compile the installation of the directory to go, my is installed into the/usr/local/mysql database: Cd/

Concrete Example 1. PHP Server ComponentsFor beginners, it is recommended to use the integrated server component, which already includes PHP, Apache, Mysql and other services, eliminating the time spent by developers in the tedious configuration

MySQL stored procedure SP explanation 1. Introduction to stored procedures The commonly used Operating Database Language SQL statements must be compiled and then executed before execution. the Stored Procedure (Stored Procedure) is a set of SQL