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Tag: select-into

How can I obtain the last inserted row with INSERT … SELECT in PostgreSQL?

By adminPosted on June 22, 2022

Question : I’m trying to batch-copy data in a specific order from one table to another in PostgreSQL 12-beta2. The […]

How much storage space do indexes and keys take for an SQL Table?

By adminPosted on January 17, 2022

Question : I have a table which is predominantly filled with NULLS and takes up 10 GB which was shocking […]

How to speed up an insertion from a huge table with postgres?

By adminPosted on October 11, 2021

Question : I have 5 tables in my database with respectively a size of 70Gb, 500Mb, 400 Mb, 110Mb and […]

SQL Server: I need to estimate execution time of a SELECT .. INTO .. statement

By adminPosted on February 11, 2021

Question : To take backup of a big table (using SELECT .. INTO .. ) took me almost 4 hours […]

Create an empty table from an existing table keeping the default value constraint

By adminPosted on November 6, 2020

Question : I tried: Select * Into <DestinationTableName> From <SourceTableName> Where 1 = 2 but the default value constraint is […]

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