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use tempdb
go
if (object_id ('udf_getExcelTableNames' ) is not null )
    drop function dbo .udf_getExcelTableNames
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create function udf_getExcelTableNames (@filename varchar (1000 ))
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set nocount on
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create table t ......

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if (object_id ('t1' ) is not null ) drop table t1
if (object_id ('t2' ) is not null ) drop table t2
go ......
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