Cast from VARCHAR to INT – MySQL

As described in Cast Functions and Operators: The type for the result can be one of the following values: BINARY[(N)] CHAR[(N)] DATE DATETIME DECIMAL[(M[,D])] SIGNED [INTEGER] TIME UNSIGNED [INTEGER] Therefore, you should use:

Sql query to insert datetime in SQL Server

You will want to use the YYYYMMDD for unambiguous date determination in SQL Server. If you are married to the dd-mm-yy hh:mm:ss xm format, you will need to use CONVERT with the specific style. 5 here is the style for Italian dates. Well, not just Italians, but that’s the culture it’s attributed to in Books Online.

How can I do ‘insert if not exists’ in MySQL?

Use INSERT IGNORE INTO table. There’s also INSERT … ON DUPLICATE KEY UPDATE syntax, and you can find explanations in 13.2.6.2 INSERT … ON DUPLICATE KEY UPDATE Statement. Post from bogdan.org.ua according to Google’s webcache: 18th October 2007 To start: as of the latest MySQL, syntax presented in the title is not possible. But there … Read more

How can I prevent SQL injection in PHP?

The correct way to avoid SQL injection attacks, no matter which database you use, is to separate the data from SQL, so that data stays data and will never be interpreted as commands by the SQL parser. It is possible to create SQL statement with correctly formatted data parts, but if you don’t fully understand … Read more

What is difference between SQLite and SQL

Every SQL database uses its own implementation of the language that varies slightly. While basic queries are almost universal, there are notable nuances between MySQL, PostgreSQL, Microsoft SQL Server, Oracle Database, etc. What’s particularly notable about SQLite is that unlike all the others mentioned above, this database software doesn’t come with a daemon that queries … Read more