Batch Inserts in SQL Server
Ever had to insert alot of data into SQL server and did not want to write each record, one at a time? Here's a tip:
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INSERT INTO [TABLE] (column1,column2) select ('Value1','Value1A') UNION ALL select ('Value2','Value2A') UNION ALL select ('Value3','Value3A') |
Note: UNION ALL versus UNION -- UNION ALL does NOT perform a distinct. UNION without ALL eliminates duplicate records (in the resulting recordset) in SQL Server.
Also the maximum batch (query) length in SQL server is (65,536 * 4K) characters long. It would be prudent to avoid passing that limit.
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