Introduces the underlying theories of Relational Database Management Systems (RDBMS) as well as their practical use retrieving data using both embedded SQL and relational algebra. - MySQL/Sample Alter ...

In this example, a BEFORE INSERT trigger named my_trigger is created on the table my_table. The trigger body modifies the value of a column before inserting a new row into the table. Overall, triggers ...

The first thing that strikes me as odd is that in your SQL Server code example you have the tables, transactions_2011_12 and transactions_2012_01. Where as in your MySQL code example you just use ...

Fastest Way to Check if MYSQL Table Exists in PHP. Dynamic PHP pages give you the option to choose a MySQL table dynamically from which to query. You must ensure that the table exists before ...

JPA 3 and Hibernate persistence.xml file As developers migrate their old Java Persistence API applications to JPA 3, their progress is often halted when an incorrectly configured JPA 3 persistence.xml ...

Hibernate MySQL persistence XML file As MySQL installations continue to migrate and evolve to newer versions, the online JPA and Hibernate 5 tutorials haven’t kept up with quite as much vigor. As a ...

Web pages on the UCL Web server which use PHP can access databases on the MySQL server. Full details of the PHP MySQL API (Application Program Interface) can be found in the on-line PHP manual. Pages ...