Regarding the count (*) while using with the table alias

Hello
I question in Count (*). It will work with table alias.

It works when I use it as below

'select count (*) po_headers_all po_header_id' - his works perfectly

but, when I questioned as below his does not.

"select count (*) from po_headers_all poh poh.po_header_id".

I like you guys to clarify my request.

Thanks in advance.

Kind regards
Uvaraja

Uvaraja wrote:
Hello
I question in Count (*). It will work with table alias.

It works when I use it as below

'select count (*) po_headers_all po_header_id' - his works perfectly

but, when I questioned as below his does not.

"select count (*) from po_headers_all poh poh.po_header_id".

I like you guys to clarify my request.

Thanks in advance.

Kind regards
Uvaraja

Does it that way if you want to use the alias with the County, you must do the following:

Select count (test.column) from my_table test;

Select test.* my_table test;

Tags: Database

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