mysql datetime compare

http://tsecer.blog.163.com/blog/static/150181720160117355684/a grammatical analysis of time comparisonIn MySQL, the usual time is an essential type, and a special place of this type is its comparison function. In fact, even if the comparison

MySQL date type DATETIME and TIMESTAMPThere are three types of dates in MySQL5: DATETIME, DATE, and TIMESTAMP, except that DATE is used to indicate a DATE without time and second, and the other two have time and second. TIMESTAMP can also be

MySQL date type DATETIME and TIMESTAMPThere are three types of dates in MySQL5: DATETIME, DATE, and TIMESTAMP, except that DATE is used to indicate a DATE without time and second, and the other two have time and second. TIMESTAMP can also be

Compare the date difference between MySQL and Oracle by using a create statement Today, a developer submitted an SQL change and found a problem during deployment.A statement is a simple create statement.Create table 'test _ user '('Openid' varchar (6

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 -----------------------------------------------------------------------------

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 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

The three types of date, DateTime, and timestamp (four kinds) used to represent time in MySQL are easy to confuse, and the following compare the similarities and differences of these three types Same point Can be used to represent timeare

MySQL timestampdiff () functions are much more powerful than datediff () functions. datediff () can only calculate the number of days for the difference between two dates. Mysql common date addition and subtraction functions and instance

MySQL compares two datetime-type time intervals, in seconds: SELECTTIME_TO_SEC (TIMEDIFF ('2017-02-09 11:24:46 ', '2017-02-09 10:23:46 ')); First read select timediff ('2017-02-09 11:24:46 ', '2017-02-09 10:23:46 ')01:01:00 SELECT TIME_TO_SEC('01:01: