union
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Oracle clob형 필드와 varchar필드 union 할수 있게
Clob 타입이 아닌 컬럼과 union 시에select to_clob(content) as cont from tableunion allselect article as cont from table2
Clob 타입이 아닌 컬럼과 union 시에select to_clob(content) as cont from tableunion allselect article as cont from table2