how to get current datetime in SQL?

Want to get current datetime to insert into lastModifiedTime column. I am using MySQL database. My questions are:

1. is there a function available in SQL? or

2. it is implementation depended so each database has its own function for this?

3. what is the function available in MySQL?

9 Answers

Complete answer:

1. Is there a function available in SQL?
Yes, the SQL 92 spec, Oct 97, pg. 171, section 6.16 specifies this functions:

CURRENT_TIME Time of day at moment of evaluation CURRENT_DATE Date at moment of evaluation CURRENT_TIMESTAMP Date & Time at moment of evaluation 

2. It is implementation depended so each database has its own function for this?
Each database has its own implementations, but they have to implement the three function above if they comply with the SQL 92 specification (but depends on the version of the spec)

3. What is the function available in MySQL?

NOW() returns 2009-08-05 15:13:00 CURDATE() returns 2009-08-05 CURTIME() returns 15:13:00 

I always just use NOW():

INSERT INTO table (lastModifiedTime) VALUES (NOW()) 

NOW() returns 2009-08-05 15:13:00

CURDATE() returns 2009-08-05

CURTIME() returns 15:13:00

I want my datetime, and I want it now()!

For MySQL, anyway.

SYSDATETIME() 2007-04-30 13:10:02.0474381 SYSDATETIMEOFFSET()2007-04-30 13:10:02.0474381 -07:00 SYSUTCDATETIME() 2007-04-30 20:10:02.0474381 CURRENT_TIMESTAMP 2007-04-30 13:10:02.047 + GETDATE() 2007-04-30 13:10:02.047 GETUTCDATE() 2007-04-30 20:10:02.047 

I guess NOW() doesn't work sometime and gives error 'NOW' is not a recognized built-in function name.

Hope it helps!!! Thank You.

For SQL Server use GetDate() or current_timestamp. You can format the result with the Convert(dataType,value,format). Tag your question with the correct Database Server.

Just an add on for SQLite you can also use

 CURRENT_TIME CURRENT_DATE CURRENT_TIMESTAMP 

for the current time, current date and current timestamp. You will get the same results as for SQL

sql sqlite

1. GETDATE() or GETUTCDATE() are now superseded by the richer SYSDATETIME, SYSUTCDATETIME, and SYSDATETIMEOFFSET (in SQL 2008)
2. Yes, I don't think ANSI has ever declared anything, and so each manufacturer has their own.
3. That would be NOW()

Hope this helps...

Rob

try this

SELECT CURTIME(); return 23:12:58

SELECT CURDATE(); return 2020-11-12

SELECT NOW(); return 2020-11-12 23:19:26

SELECT DAY(now()); return 12

SELECT DAYNAME(now()); return Thursday

Hope this would be helpful for you.