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MSDN Library Visual Studio 6.0 > Visual Studio Documentation > Data Access Tools and Technologies > Microsoft Visual Database Tools > Database Designer > Working with Database Objects > Constraints

[MSDN Library June 1998] PRIMARY KEY Constraints (37.0511351326697%)

MSDN Library Visual Studio 6.0 > Platform SDK > Database and Messaging Services > Microsoft SQL Server Programmer's Toolkit > Database Developer's Companion > Chapter 2 Working with Tables > Using Datatypes to Enforce Data Integrity

[MSDN Library September 1992] Primary Expressions (28.3721297246114%)

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[MSDN Library June 1998] Primary Window Components (27.1308446455505%)

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[MSDN Library September 1992] Primary Expressions (26.2229794193812%)

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[MSDN Library June 1998] Primary Return Codes (25.5722617160319%)

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[MSDN Library June 1998] Primary Language Identifiers (24.5714285714286%)

MSDN Library Visual Studio 6.0 > Platform SDK > Windows Base Services > International Features > National Language Support > National Language Support Reference > National Language Support Constants