SQL Server Interview: How to prevent ‘SELECT *’ using T-SQL Script?

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SQL Server Interview: A Golden question, Can we disable the Clustered Index?

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A Day in the life of a DBA !

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NoSQL: The latest buzzword in Data Science, What is NoSQL? (Day 1)

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sqlserverinterviews

PostgreSQL: Difference between pg_log, pg_clog and pg_xlog log directories

In this post, I am sharing the basic purpose of pg_log, pg_clog and pg_xlog log directories in PostgreSQL. If you look into your PostgreSQL data directory, you can find a different type of log folders. pg_log: This is a default database logs like: error messages, executed query log, dead lock information, Postgers start/stop messages. First, […]

December 4, 2016 PostgreSQL
December 3, 2016

Database News: Now Uber switched from PostgreSQL to MySQL

December 2, 2016

PostgreSQL: CLUSTER – Improve Index Performance (No default cluster index)

December 1, 2016

Database Theory: What is difference between MySQL and PostgreSQL?

November 30, 2016

Database Design: Don’t use, comma separated Tables in SELECT Query, Use Explicit JOINs

November 29, 2016

PostgreSQL: How to calculate RANK in a query (DENSE_RANK())

November 28, 2016

PostgreSQL: Using PSQL, Disable Autocommit Globally

November 27, 2016

PostgreSQL: Create Prepared Statement, to increase Session Performance

November 26, 2016

PostgreSQL: Performance Test of RETURNS TABLE vs OUT Parameters

November 25, 2016

PostgreSQL 9.4: UNNEST() WITH ORDINALITY to generate String Array Sequence Number

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Find top N records for each group in MySQL
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MySQL: Script to find last Updated time of the Table
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PostgreSQL: Check the progress of running VACUUM
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About Me!

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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