Article Summary
While SQL is a universal database language, T-SQL is Microsoft's proprietary extension built for SQL Server. This article contrasts their syntax, data types, procedural capabilities, and key functions. You'll gain a clear understanding of SQL vs T-SQL differences to choose the right dialect confidently.
If you are new to SQL, the differences between standard SQL and other variants of the SQL language, such as T-SQL, may confuse you. Very few proprietary SQL languages follow the SQL standard strictly. In this article, I will explain the differences between SQL and T-SQL.
What are SQL and T-SQL?
SQL, Structured Query Language, was first created in the 1970s. In the 1980s, multiple companies started their own SQL programs. These versions varied from the original in different ways.
In the mid-1980s, two organizations, ISO and ANSI, published their SQL standards. This meant that others could use it as a starting point for their version. In this article, I will refer to the ISO/ANSI versions as “Standard SQL.”
Some of the major modern dialects of SQL are:
- Oracle SQL.
- PL SQL, which is an extension of Oracle SQL.
- Microsoft SQL Server’s version, TSQL or T-SQL, which is short for Transact SQL.
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Frequently Asked Questions
Explore the differences between T-SQL, which is the variant used in Microsoft SQL Server, and the Standard SQL created by ISO and ANSI. This guide provides structured insights, proven methodologies, and actionable execution steps for modern professionals.
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