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1.13. By default SQL Server uses
READ COMMITED TRANSACTION ISOLATION LEVEL.
With this level a SELECT-SQL command will lock records. If
the function E_SQL_Select_Convert sees a defined FoxPro variable named SETLOCSYS_SQL_Server_Select_NoLock with a value of .T., then our utility will insert the compiler directive WITH
(NOLOCK) after each table reference in the FROM clause.
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