Input Operation Test with BIGINT Data Type
How to run an input operation test with INSERT statements on BIGINT data type?
If you want to see the impact of larger data type like 8-byte BIGINT, comparing to the 4-byte INT, you can follow this tutorial.
Create the following SQL script, fyi_bigint_insert.sql:
-- fyi_bigint_insert.sql -- Copyright (c) FYIcenter.com DECLARE @Count INT SET @Count = 100 DECLARE @I INT DECLARE @STime DATETIME DECLARE @ETime DATETIME DECLARE @Duration INT CREATE TABLE FYI_BIGINT (QUANTITY BIGINT) SET @STime = GETDATE() SET @I = 0 WHILE @I < @Count BEGIN INSERT INTO FYI_BIGINT VALUES (@I) SET @I = @I+1 END SET @ETime = GETDATE() DROP TABLE FYI_BIGINT SET @Duration = DATEDIFF(millisecond,@STime,@ETime) SELECT @Count AS Count, @Duration AS Duration, 1000*@Count/@Duration AS Throughput, @Duration/@Count AS Latency
Each record now has a single field of BIGINT, which uses 8 bytes.
Now run the script with different @Count values on the Azure SQL Database. You will get something like:
Count Duration Throughput Latency 100 560 178 5 1000 5737 174 5 10000 59834 167 5 25000 150890 165 6
The actual input data throughput is 165 * 8 bytes/sec = 1,320 bytes/sec = 1.3 KB/sec, using the last test result.
Comparing to 4-byte INT records, inserting 8-byte BIGIN records is more efficient. The throughput increased from 0.9 KB/sec to 1.3 KB/sec.
2019-07-30, 549👍, 0💬
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