MySQL datetime insert into SQL Server datetime using PHP : PHP

May 17, 2008 10:46am pdt

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02.29.2008 at 10:48AM PST, ID: 23204667

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9.6

MySQL datetime insert into SQL Server datetime using PHP

Zones: MS SQL Server, PHP and Databases, MySQL Server

Tags: PHP

We have a MySQL v5 database that sits behind a website on a web server.

A PHP script is used to take records and insert them into an SQL Server 2000 database that resides on another server. The PHP script uses the free TDS driver.

We are having a problem with one field which is a datetime field. The datetime field does not insert into the SQL Server database correctly, even though the corresponding SQL Server field is also datetime.

We get NULL inserts for this field.

Can you help? Thanks.

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Question Stats

Zone: Microsoft

Question Asked By: Annu

Solution Provided By: angelIII

Participating Experts: 4

Solution Grade: A

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02.29.2008 at 10:51AM PST, ID: 21016304

Rank: Wizard

hielo:

I know what's wrong with the posted query...No wait, I don't!

02.29.2008 at 11:01AM PST, ID: 21016400

Rank: Genius

angelIII:

can you please clarify your problem?
you speak about MySQL, MSSQL, and queries, but nothing really clear...

02.29.2008 at 11:09AM PST, ID: 21016487

Rank: Guru

routinet:

MySQL returns date information in a particular format, while MSSQL is expecting in a different, particular format.

According to MSSQL 2000 BOL (sorry...a little outdated, but should be relevant):

-----------------------------------------
SQL Server recognizes date and time data enclosed in single quotation marks (') in these formats:

Alphabetic date formats (for example, 'April 15, 1998')

Numeric date formats (for example, '4/15/1998', 'April 15, 1998')

Unseparated string formats (for example, '19981207', 'December 12, 1998')
-----------------------------------------

Below I have shown an example of how MySQL interprets date inputs, and how you can expect it to look in a query using a simple field select. I would recommend you select from the MySQL table in such a way as to create the proper format that MSSQL demands. See the DAY(), MONTH(), and YEAR() functions in MySQL to parse the date, and use CONCAT() to build a new string.

http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html

                       
                          
                             
                             
                                mysql> CREATE TABLE `table1` (
    ->   `field1` int(11) unsigned NOT NULL auto_increment,
    ->   `field2` datetime default NULL,
    ->   PRIMARY KEY  (`field1`)
    -> ) ENGINE=MyISAM;
Query OK, 0 rows affected (0.01 sec)
 
mysql> insert into table1 (field2) values ('2008-06-01'),('06-02-2008'),('03-06-2008'),('4/6/2008'),('6/5/2008');
Query OK, 5 rows affected, 4 warnings (0.00 sec)
Records: 5  Duplicates: 0  Warnings: 4
 
mysql> select * from table1;
+--------+---------------------+
| field1 | field2              |
+--------+---------------------+
|      1 | 2008-06-01 00:00:00 |
|      2 | 0000-00-00 00:00:00 |
|      3 | 0000-00-00 00:00:00 |
|      4 | 0000-00-00 00:00:00 |
|      5 | 0000-00-00 00:00:00 |
+--------+---------------------+
5 rows in set (0.00 sec)
                             
                          

                    

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02.29.2008 at 12:21PM PST, ID: 21017165

Rank: Master

nplib:

that's because the datetime fields are done differently.

after getting the date, using php convert the format to the format of the MSSQL datetime

02.29.2008 at 03:01PM PST, ID: 21018445

Annu:

Thanks for all the responses. Here is more information on the problem:

We already translate the date into a format acceptable to MSSQL. For example, we put a record in with todays date, the php script outputs:

INSERT INTO thetable datetimecompleted values('29/02/2008 15:34:23')

which is then run using query command.

This results in a new row with NULL in the datetimecompleted column.

If I copy and paste this same line in to the MSSQL query editor gui thingy and then execute it, it works, i.e. it correctly enters the date.

02.29.2008 at 03:55PM PST, ID: 21018764

Rank: Wizard

hielo:

Try the month before the day:
INSERT INTO thetable datetimecompleted values('02/29/2008 15:34:23')

02.29.2008 at 11:06PM PST, ID: 21020476

Rank: Genius

angelIII:

>This results in a new row with NULL in the datetimecompleted column.
I cannot believe that, unless you have a trigger on the table..

in MySQL, if the value is not in the correct format or an out-of-range value, it will silently put 0000-00-00 instead.
in MS SQL, if the value is not in the correct format or an out-of-range value, it will raise an error (and the insert will fail/rollback).

note:
INSERT INTO thetable datetimecompleted values('29/02/2008 15:34:23')
uses implicit data type conversion, which is BAD behaviour.

better use this explicit data type conversion method:
INSERT INTO thetable (datetimecompleted) SELECT CONVERT(datetime, '29/02/2008 15:34:23', 103)

Accepted Solution

angelIII

03.03.2008 at 02:17AM PST, ID: 21030188

<Grading Comments>
You have written
INSERT INTO thetable (datetimecompleted) SELECT CONVERT(datetime, '29/02/2008 15:34:23', 103)
I think it should be
INSERT INTO thetable (datetimecompleted) VALUES CONVERT(datetime, '29/02/2008 15:34:23', 103)
</Grading Comments>

if you use VALUES, then you needed additional () around the values:
INSERT INTO thetable (datetimecompleted) VALUES (CONVERT(datetime, '29/02/2008 15:34:23', 103) )

anyhow, SELECT will also work.

20080206-EE-VQP-25 / EE_QW_2_20070628