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SQL (short for Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational databases.

SQL may also refer to:

  • Standard quantum limit, a limit on measurement accuracy at quantum scales in physics
  • Squelch, in telecommunications, a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a strong input signal
  • San Carlos Airport (California), an airport in San Mateo County, California, whose IATA designation and FAA LID are SQL

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SQL Server

relational database server developed by Sybase SQL This disambiguation page lists articles associated with the title SQL Server. If an internal link incorrectly

Null

interferometry to block certain sources of light Null (SQL) (or NULL), a special marker and keyword in SQL indicating that a data value does not exist, is not

Sql insertion

SQL Insertion may refer to: SQL insertion attack Insert (SQL), statement in SQL This disambiguation page lists articles associated with the title Sql

SQL Developer

SQL Developer may refer to: Oracle SQL Developer, a free SQL IDE from Oracle Corporation PL/SQL Developer, an IDE for PL/SQL development from Allround

Join

tuples corresponding to the relation join of SQL Join (SQL), relational join, a binary operation on SQL and relational database tables join (Unix), a

Null symbol

Null (SQL) (ω), a special marker and keyword NULL in SQL Empty string (λ, Λ, or ε), in formal language theory Null (disambiguation) Ø (disambiguation) Dotted

Intersection (disambiguation)

religion) and the way those categorizations interact Intersect (SQL), a set operator in SQL Intersect (video game) Logical conjunction Intersection (group)

Vacuum (disambiguation)

data set clean-up process An SQL command for reclaiming and defragmentizing unused table space offered by SQLite and PostgreSQL Vacuum (journal), academic