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sqlserverinterviews

String_agg 2

September 2, 2016

PostgreSQL: STRING_AGG() to Concatenate String Per Each Group (Like SQL Server STUFF())

August 28, 2016

PostgreSQL 9.4: How to Convert JSON ARRAY Elements into String ARRAY

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MySQL !
Find top N records for each group in MySQL
MySQL: Script to find Last AUTO_INCREMENT value for a Table
row_number and partition by in Mysql
MySQL 5.7: How to create an Index on JSON Data Type Column
MySQL: Copy Database From One Server to Another Server (Using mysqldump)
MySQL: The Main difference between InnoDB and MyISAM
How to Insert if not exists in MySQL
PostgreSQL !
PostgreSQL psql FATAL: error Peer authentication failed for user
PostgreSQL: SELECT Last Inserted ID or Sequence Value
PostgreSQL 10: Trace the Status of Transaction (Commit, In Progress, Rollback, Aborted)
PostgreSQL: Copy Table Data from another Table (INSERT INTO SELECT)
PostgreSQL: Load table into Buffer Cache, Increase the Speed of Accessing data
PostgreSQL: Script to find size of all Databases of Server
Script to find active sessions or connections in PostgreSQL
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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