database

Tag: database

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20.Mai, 2010

IT Guru

MySQL Spatial Extensions and Time Intervals

Although the spatial extension is designed for geometric data, it is also very conveniently usable for comparing time intervals and other solutions that can be projected onto geometric planes.

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Views: 1042 (1)

MySQL: User-Defined Variables in SQL Queries

IT Guru

MySQL: User-Defined Variables in SQL Queries

This time my interest fell specifically on user-defined variables. They can be broadly divided into two categories: declared variables, used in procedures and functions, and undeclared variables, also used in procedures and functions, but which can be used in an SQL query "in-line".

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Views: 1957 (22)

MySQL: Getting the Next ID Value (next_id, AUTO_INCREMENT)

IT Guru

MySQL: Getting the Next ID Value (next_id, AUTO_INCREMENT)(1)

A problem as old as the world - how to get the next ID value for a table in a MySQL database, given that the ID value is generated as AUTO_INCREMENT.

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Views: 3959 (11)

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08.Feb, 2009

IT Guru

MySQL: Getting the Next ID Value (next_id, AUTO_INCREMENT)(1)

A problem as old as the world - how to get the next ID value for a table in a MySQL database, given that the ID value is generated as AUTO_INCREMENT.

Views: 3959 (11)

10.Feb, 2009

IT Guru

MySQL: User-Defined Variables in SQL Queries

This time my interest fell specifically on user-defined variables. They can be broadly divided into two categories: declared variables, used in procedures and functions, and undeclared variables, also used in procedures and functions, but which can be used in an SQL query "in-line".

Views: 1957 (22)

20.Mai, 2010

IT Guru

MySQL Spatial Extensions and Time Intervals

Although the spatial extension is designed for geometric data, it is also very conveniently usable for comparing time intervals and other solutions that can be projected onto geometric planes.

Views: 1042 (1)

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