A SQL trigger is a set of SQL statements stored in the database catalog. A SQL trigger is executed whenever an event associated with a table occurs e.g., insert.

For full examples of using Oracle data functions for scheduling, see Dr. Hall’s book "Oracle Job Scheduling": — Schedule a snapshot to be run on this instance every.

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The DATEDIFF function is used to calculate the difference between two days, and is used in MySQL and SQL Server.

This SQL tutorial explains how to use the SQL UNION operator with syntax and examples. The SQL UNION operator is used to combine the result sets of 2.

Mar 06, 2009  · There are different kinds of data types available in different RDBMS and we have covered many of them in our blog posts before. One that rarely gets used.

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Dec 07, 2012  · The SYSDATE pseudo-column shows the current system date and time. Example:—Next 5 hours SQL> select to_char(sysdate,’DD/MM/YYYY HH24:MI:SS’),to_char.

Aug 26, 2013  · Blind SQL (Structured Query Language) injection is a type of SQL Injection attack that asks the database true or false questions and determines the answer.

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SQL Functions. SQL functions are built into Oracle Database and are available for use in various appropriate SQL statements. Do not confuse SQL functions with user.

You must watch out for many subtle and not-so-subtle traps when translating Oracle queries to SQL Server. Just as T-SQL is the language engine of SQL Server, PLSQL is that of Oracle. Both these languages support several.

You must watch out for many subtle and not-so-subtle traps when translating Oracle queries to SQL Server. Just as T-SQL is the language engine of SQL Server, PLSQL is that of Oracle. Both these languages support several.

1.How to generate row number in SQL Without ROWNUM Generating a row number – that is a running sequence of numbers for each row is not easy using plain SQL. In fact.

Aug 26, 2013  · Blind SQL (Structured Query Language) injection is a type of SQL Injection attack that asks the database true or false questions and determines the answer.