I. Music
Indian music has at least 3000 years of history. The song in the book 'pyriverid', which came out around 1500 BC, can be seen as the earliest lyrics. The moveda is a song set of ancient times, designed for the priests to sing at sacrifices.
This article is guided by: in the actual SQL application, the group aggregation is often needed, the query object is grouped according to certain conditions, and then the aggregation of each group is analyzed. The creation of groupings is achieved
Conditional statementsdelimiter \\CREATE PROCEDURE proc_if ()BEGIN declare i int default 0; if i = 1 THEN SELECT 1; ELSEIF i = 2 THEN SELECT 2; ELSE SELECT 7; END IF;END\\delimiter ;Looping statementsWhile
How to use case in SQL
Case has two formats. Simple case function and case search function.
Copy Code code as follows:
--Simple Case function
Case Sex
When ' 1 ' THEN ' male '
When ' 2 ' THEN ' woman '
Else ' other '
Case has two formats. Simple case function and case search function.--Simple Case function Case Sex When ' 1 ' Then ' men ' When ' 2 ' then ' women ' Else ' other ' END --case search function case If sex = ' 1 ' Then ' man ' When sex = ' 2 '
Case has two formats. Simple case function and case search function.--Simple Case function Case Sex When ' 1 ' Then ' men ' When ' 2 ' then ' women ' Else ' other ' END --case search function case If sex = ' 1 ' Then ' man ' When sex = ' 2 '
The Linux clock is divided into system clocks (systems Clock) and hardware (real time Clock, short RTC) clocks. The system clock is the clock in the current Linux kernel, and the hardware clock is the battery-powered clock on the motherboard, which
Article Title: Introduction to the Time Setting Method in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open
[Root @ localhost ~] # Date-R // view the time zone
Mon, 19 May 2014 10:18:46 + 0000
[Root @ localhost ~] # Tzselect // set and modify the time zone
Please identify a location so that time zone rules can be set correctly.
Please select a continent
1. Adjust database server timeBecause the app shook a shake activity found out of date 15 minutes, but also can continue to shake, the problem is that the database server time than the application server time is quite 18 minutes, and the app is the
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