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How to Insert custom date into MySQL timestamp field?
The problem with UNIX_TIMESTAMP() function is that it returns an integer while we want to insert custom date i.e. not any integer part to MySQL date.
Do not use UNIX_TIMESTAMP() for your column defined as TIMESTAMP because UNIX_TIMESTAMP() returns an integer.
Check the UNIX_TIMESTAMP. The query is as follows −
mysql> select UNIX_TIMESTAMP( '2019-01-09 15 −48 −23') AS IntegerValue;
The following is the output −
+--------------+ | IntegerValue | +--------------+ | 1547029103 | +--------------+ 1 row in set (0.00 sec)
Look at the sample output, the UNIX_TIMESTAMP() function returns an integer of corresponding date and time.
The syntax is as follows to insert custom date for your column TIMESTAMP.
INSERT INTO yourTableName(yourColumnName) values('yourCustomDateTime');To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table TimestampDemo -> ( -> Id int NOT NULL AUTO_INCREMENT, -> yourTimestamp TIMESTAMP, -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (2.14 sec)
To insert custom date to MySQL timestamp field, the following is the query −
mysql> insert into TimestampDemo(yourTimestamp) values('2019-01-09 15 −48 −23');
Query OK, 1 row affected (0.37 sec)
mysql> insert into TimestampDemo(yourTimestamp) values('2018-03-14 16 −4 −23');
Query OK, 1 row affected (0.37 sec)
mysql> insert into TimestampDemo(yourTimestamp) values('2017-12-10 10 −8 −20');
Query OK, 1 row affected (0.16 sec)
mysql> insert into TimestampDemo(yourTimestamp) values('2016-4-05 13 −45 −21');
Query OK, 1 row affected (0.30 sec)Now you can display all records from the table using select statement. The query is as follows −
mysql> select *from TimestampDemo;
The following is the output −
+----+-----------------------+ | Id | yourTimestamp | +----+-----------------------+ | 1 | 2019-01-09 15 −48 −23 | | 2 | 2018-03-14 16 −04 −23 | | 3 | 2017-12-10 10 −08 −20 | | 4 | 2016-04-05 13 −45 −21 | +----+-----------------------+ 4 rows in set (0.00 sec)
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