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nikitha
Starting Member
2 Posts |
 Posted - 2009-06-11 : 05:55:28
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| What are I/O reads in SQL Server?Are they physical reads or logical reads?Can someone please explain me this? |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2009-06-11 : 06:41:14
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IO reads can be either physical or logical.SET STATISTICS IO ONwill display both types of reads.
E 12°55'05.63"N 56°04'39.26" |
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nikitha
Starting Member
2 Posts |
Posted - 2009-06-12 : 05:05:59
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| Thanks Peso...In general some tool doesnot mention in the results whether the read is logical i/o or physical i/o and just gives the statistics of i/o, then what does it mean? physical i/o or logical i/o? |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2009-06-12 : 05:13:45
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Which tools are you referring to?The suggestion above is used in a SSMS query window and the result is presented in the Messages tab.
E 12°55'05.63"N 56°04'39.26" |
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I/O reads in SQL server