mysql yyyy mm dd

A table contains a field of the datetime type, and you want to insert a time to it in the format of "yyyy-mm-dd hh: mm: SS "; First, execute ps. setdate (2, date) in SQL )... After successful insertion, the time and seconds of the background

In Java and some of the commonly used data (Mysql/sqlsever) in the month and day of the conversion, are usedSELECT to_char (current_date, ' yyyy-mm-dd hh:MM:ss ')However, there is a problem with this in PostgreSQL, and executing the above statement

MySQL For the value range of each type and the valid format of the specified date value, see 7.3.6 Date and Time type. Here is an example of using the date function. The following query Selects all records. The value of date_col is within the last 3

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 functions and Usage examples String functions ASCII (str)Returns the ASCII value of the first character of the string 'str' (0 is returned when 'str' is an empty string)Mysql> select ASCII ('2 ');-> 50Mysql> select ASCII (2 );-> 50Mysql>

2. DAYOFWEEK (date) 3. WEEKDAY (date) 4. DAYOFMONTH (date) 5. DAYOFYEAR (date) 6. MONTH (date) 7. DAYNAME (date) 8. MONTHNAME (date) 9. QUARTER (date) 10. WEEK (date) WEEK (date, first) 11. YEAR (date) 12. HOUR (time) 13. MINUTE (time) 14.S 2.

Java The date indicated by the previous write Java code is YYYY-MM-DD hh: mm: SS Mm (uppercase for month) and mm (lowercase for minutes) SQL But in SQL, the situation is completely different. (Cause: the reason is that SQL statements are

Date and Time functionsThis chapter discusses some functions that can be used to manipulate time values. See section 11.3, "Date and Time type" for valid formats for each time and date type with a range and a specified value. The following example

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