SQL Servers allow the import or export of database diagrams to another database. All the information related to a database is stored in the dtproperties table. Therefore, to import or export a ...

A simple SQL*Plus script to create table diagrams for an Oracle Database. The table information is extracted from Oracle's internal Data Dictionary (USER_TABLES, etc) using regular SQL queries An ...

Learn how to use the UNION operator in SQL, a set operation that combines the rows from two or more queries into one result set. Discover the benefits, limitations, and examples of using it.

You can copy a table from one database diagram to another in the same database. Copying a table from one database diagram to another diagram adds a reference to the table in the second diagram. The ...

Learn how to use UNION in SQL, a function that combines rows from multiple tables with the same structure. Discover the benefits, limitations, and best practices of UNION.