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Oracle Primary Keys.

In Oracle PLSQL primary key is a single field or a combination of fields that determines the uniqueness of the record. Fields that are part of the pri…

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Creating databases and tables using SQL commands.

This article will show you how to create new databases and tables using SQL commands in a mysql client. It is assumed that this tool is running and co…

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Why should the MySQL GROUP CONCAT function be used?

This is the function MySQL GROUP CONCAT and how it can change the work with query results. Especially if the database is the data source for the appli…

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How to read Windows emergency memory dump (MEMORY.DMP).

In Windows, when the operating system crashes, an emergency memory dump is automatically created and saved in the Windows system directory in the MEMO…

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Oracle CREATE SCHEMA operator.

The CREATE SCHEMA operator does not actually create the circuit in Oracle. (Learn how to create a schema in Oracle.)

The CREATE SCHEMA statement is …

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