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Why does inclusion of a PK in each table of a database help to reduce the overall size of the database?<br />
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I had a trial database with lots of tables, one I put in PKs for every table, the size of the database shrank<br />
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Sanjay
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Why does inclusion of a PK in each table of a database help to reduce the overall size of the database?

I had a trial database with lots of tables, one I put in PKs for every table, the size of the database shrank

Sanjay

Primary Key and Database Size

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.