when i am executing this query i am getting error
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The problem is that there is no such table aliased with "a", hence a.sub_analysis_code should not be used in the sub-query. This is where you get the error. If you can sort out what "a" is, this will get you going.
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Hi, The alias name "a" is not referring any table, and work with @Usman Butt answer you may solve this issue
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