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1. stackoverflow.com › questions › 1691117How to store NULL values in datetime fields in MySQL?

   stackoverflow.com › questions › 1691117

   26 sie 2015 · In php, the mysql null dates type will be respected with the standard mysql connector, and be real nulls ($var === null, is_null($var)). Empty dates will always be represented as '0000-00-00 00:00:00'.

2. www.sitepoint.com › community › tDisplay a NULL date as blank string with Php - SitePoint

   www.sitepoint.com › community › t

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   9 wrz 2008 · If your database is returning a null value then you can do it as part of the query. If you database is mysql then look at the coalesce() function.

3. php.tutorialink.com › how-to-store-null-values-in-datetime-fields-in-mysqlHow to store NULL values in datetime fields in MySQL? – PHP

   php.tutorialink.com › how-to-store-null-values-in-datetime-fields-in-mysql

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   Answer. MySQL does allow NULL values for datetime fields. I just tested it: mysql> create table datetimetest (testcolumn datetime null default null); Query OK, 0 rows affected (0.10 sec) mysql> insert into datetimetest (testcolumn) values (null); Query OK, 1 row affected (0.00 sec) mysql> select * from datetimetest; +------------+ | testcolumn

4. superuser.com › questions › 1122548How to set datetime format for SQL Server PHP driver

   superuser.com › questions › 1122548

   20 mar 2004 · However looking it up, MS SQL datetime uses the format yyyy-mm-dd hh:mm:ss. There is SET DATEFORMAT for setting the order of the month, day, and year date parts for interpreting date, smalldatetime, datetime, datetime2 and datetimeoffset character strings.

5. www.w3schools.com › sql › sql_datesDate Functions in SQL Server and MySQL - W3Schools

   www.w3schools.com › sql › sql_dates

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   TIMESTAMP - format: YYYY-MM-DD HH:MI:SS. YEAR - format YYYY or YY. SQL Server comes with the following data types for storing a date or a date/time value in the database: DATE - format YYYY-MM-DD. DATETIME - format: YYYY-MM-DD HH:MI:SS. SMALLDATETIME - format: YYYY-MM-DD HH:MI:SS. TIMESTAMP - format: a unique number.

6. www.php.net › manual › enPHP: mysql_query - Manual

   www.php.net › manual › en

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   mysql_query (string $query, resource $link_identifier = NULL): mixed. mysql_query () sends a unique query (multiple queries are not supported) to the currently active database on the server that's associated with the specified link_identifier.

7. stackoverflow.com › questions › 559590Selecting empty mysql datetime fields - Stack Overflow

   stackoverflow.com › questions › 559590

   18 lut 2009 · For DATE and DATETIME columns that are declared as NOT NULL, you can find the special date '0000-00-00' by using a statement like this: SELECT * FROM tbl_name WHERE date_column IS NULL. This is needed to get some ODBC applications to work because ODBC does not support a '0000-00-00' date value.