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sqlserverinterviews

Column Existence 1

December 10, 2018

SQL Server: If a Column Exists in a Table, don’t add it

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PostgreSQL: Understand the Proof of MVCC (Use XMIN Column)
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I'm Anvesh Patel, a Database Engineer certified by Oracle and IBM. I'm working as a Database Architect, Database Optimizer, Database Administrator, Database Developer. Providing the best articles and solutions for different problems in the best manner through my blogs is my passion. I have more than six years of experience with various RDBMS products like MSSQL Server, PostgreSQL, MySQL, Greenplum and currently learning and doing research on BIGData and NoSQL technology. -- Hyderabad, India.

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