java - Find a string in a specific table -


i'm working oracle database, i'm wondering if there way find rows contains value in column. example let's consider table:

               weather  city          state        high    low  phoenix       arizona      105     90  tucson        arizona      101     92  flagstaff     arizona      88      69  san diego     california   77      60  albuquerque   new mexico   80      72

basically (i know it's not possible), this:

select * weather * '%f%'

and give me rows

flagstaff     arizona      88      69 san diego     california   77      60

i on java side, querying rows resultset dynamically search given value in column , add row. problem table contains millions of rows , guess more efficient on database side, fetch wanted rows network.

is possible on sql side directly?

you can use view all_tab_columns search columns in given table:

declare   v_table_name varchar2(30) := 'dual';   v_search_string varchar2(100) := 'x';   v_sql varchar2(4000);   c_result sys_refcursor; begin   v_sql := 'select * ' || v_table_name || ' 1=1';   r_c in (select column_name               all_tab_columns               table_name = v_table_name) loop     v_sql := v_sql || ' or ' || r_c.column_name || ' ''%' || v_search_string || '%''';   end loop;   open c_result v_sql; end; /

in case can write procedure , return cursor java fetch data.

only - time face table full scans. if @ data transfer solution better search in java.


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