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: Why New User can access all Databases without any Grants

The Database security is always one of the major tasks for all the Database Administrators. I have also prepared one article to create Read only User in PostgreSQL. PostgreSQL: Script to Create a Read-Only Database User In this post, I am sharing small note about REVOKE privileges for newly created Database Users of PostgreSQL. Before […]

August 16, 2016 PostgreSQL
August 15, 2016

PostgreSQL 9.5: Insert IF not Exists, Update IF Exists (Insert ON CONFLICT option)

August 14, 2016

PostgreSQL 9.5: Using FOR UPDATE SKIP LOCKED Option SELECT only Committed Records

August 13, 2016

PostgreSQL 9.5: How to Concatenate and Overwrite JSON Document

August 12, 2016

PostgreSQL: CREATE DOMAIN to Abstract Data Type and Enforce Business Rules

August 11, 2016

PostgreSQL 9.4: Using FILTER CLAUSE, multiple COUNT(*) in one SELECT Query for Different Groups

August 10, 2016

PostgreSQL: Force Autovacuum for running Aggressive

August 9, 2016

PostgreSQL: The Internal path of a Query Execution to Obtain a Result

August 8, 2016

PostgreSQL: How to change the Database User Password in Linux

August 7, 2016

PostgreSQL: Script to find all Default Values of the Columns

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PostgreSQL: Multiple GROUP BY using GROUPING SETS in Single SQL Query
PostgreSQL: Script to find Index Size and Index Usage Statistics
PostgreSQL: Example of SERIALIZABLE Isolation Level
PostgreSQL 9.5: BRIN Index Maintenance using brin_summarize_new_values
PostgreSQL: Do Modulo Operation using MOD Function
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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