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A core statement in SQL that does what it says on the tin: inserts data into a table.

2 votes
1 answer
2k views

What is faster - insert into new table, or delete from existing table?

Insert statement: INSERT INTO NewTable (C1, C2, C3, C4, C5, C6, C7) SELECT OldTable1.C1, OldTable1.C2, OldTable1.C3, OldTable1.C4, OldTable1.C5, OldTable1.C6, OldTable1.C7 FROM OldTable1 INNER JOIN …
bjornasm's user avatar
  • 177
4 votes
2 answers
531 views

Will a clustered index speed up this query? (Inner join with a where clause)

Here is the query: INSERT INTO NewTable (C1, C2, C3, C4, C5, C6, C7) SELECT OldTable1.C1, OldTable1.C2, OldTable1.C3, OldTable1.C4, OldTable1.C5, OldTable1.C6, OldTable1.C7 FROM OldTable1 INNER JOIN …
bjornasm's user avatar
  • 177