query performance related issues & queries in DbaXchanger






How to get count of each column data

mysql query
Updated July 19, 2019 06:06 AM



Date between intervals dynamic

postgresql query date
Updated July 18, 2019 14:06 PM

Replacing IN condition in Oracle

oracle performance plsql
Updated July 18, 2019 14:06 PM

CHARINDEX equivalent in DB2

select query db2
Updated July 18, 2019 06:06 AM









distinct inside COUNT() OVER()

oracle query
Updated July 11, 2019 15:06 PM




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