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sqlserverinterviews

UNIQUE CONSTRAINT 4

 
March 4, 2018

SQL Server: Allow Multiple NULL Values in UNIQUE Constraint

December 17, 2017

PostgreSQL: Allow single NULL for UNIQUE Constraint Column

July 11, 2017

SQL Server Interview: What is the difference between Unique Constraint and Unique Index?

August 22, 2016

PostgreSQL: Example of Partial UNIQUE Composite Index

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MySQL !
MySQL: How to Enable and Disable Foreign Key Constraint?
MySQL: Increase the Performance of CREATE INDEX and DROP INDEX for InnoDB
MySQL: UDF to SELECT value from a Comma Separated String at any position
MySQL: Download Link for Sample Database (Sakila)
How to Insert if not exists in MySQL
MySQL: Script to find Long Running Queries and Transactions
MySQL: Script to determine the size of innodb_buffer_pool_size
PostgreSQL !
PostgreSQL 9.4: How to Convert JSON ARRAY Elements into String ARRAY
PostgreSQL: Understand the Proof of MVCC (Use XMIN Column)
PostgreSQL: Performance Test of RETURNS TABLE vs OUT Parameters
PostgreSQL: Why identifiers are Case-Sensitive
PostgreSQL: How to take a backup of your Table?
PostgreSQL: Should we create Multiple Databases OR create Multiple Schemas?
dbrnd.com published 125 Posts: This Gratitude Post for Readers
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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