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Tip of the Day
Language: SQL Server
Expertise: Beginner
Apr 20, 1997

Definition/Summary of ISQL

Question:
I would appreciate an introductory definition/summary of ISQL (Interactive SQL?).

Answer:
As you've guessed, ISQL is an acronym for Interactive SQL. In general, ISQL describes any tool or interface that allows you to type SQL commands and have them processed by the database, with the results returned to you. This often is a useful way to determine how best to construct a query, or to find specific data when there's no need to make the query part of the application that normally accesses the database (ad-hoc queries).

Most commonly, ISQL is used by database administrators (DBAs) to define or modify tables, constraints, permissions, etc. along with other internal functions that keep the database at peak performance.

You will find some tools that have incorporated the generic term, ISQL, into their product name. In those cases, the description above usually applies, but "ISQL" may refer to a specific product rather than the general class of tools.

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