Sql query -Results from 2 tables

Hi,
I need to write a query which checks whether a string is not present in table1 ,then look for it in table2.

sql1: SQL = "SELECT FormTable FROM " & TABForms  WHERE " & ctUcase & "(FORMTABLE) LIKE " & (CalcTable.ToUpper & WildChr, ctText)
if  FormTable  does not exists in FormTable then check it in Usertable
 sql2: SQL = " SELECT table_name   FROM user_tables where    table_name  LIKE " & (CalcTable.ToUpper & WildChr, ctText)

Any help appreciated.
 
RIASAsked:
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Éric MoreauSenior .Net ConsultantCommented:
can't you just UNION them?

SQL = "SELECT FormTable FROM " & TABForms  WHERE " & ctUcase & "(FORMTABLE) LIKE " & (CalcTable.ToUpper & WildChr, ctText)
SQL = SQL + " UNION "
SQL = SQL + " SELECT table_name   FROM user_tables where    table_name  LIKE " & (CalcTable.ToUpper & WildChr, ctText)
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Microsoft SQL Server

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