標籤:turn ora ret oop rom create substr roc acl
dump函數用來判斷字串中的字元類型是屬於number或者string
預存程序
create or replace procedure pro_isNum(I_STRING in varchar2,o_note out varchar2) as string1 varchar2(1000);--欄位通過dump()轉換後 num1 number(20);--欄位中字元的個數 num2 number(20);--ASCII比較變數 i number(20);--迴圈累積變數 begin IF I_String is not null then select ‘,‘||substr(dump(I_STRING),instr(dump(I_STRING),‘:‘)+1,length(dump(I_STRING))-instr(dump(I_STRING),‘:‘))||‘,‘ into string1 from dual; select nvl(length(string1)-length(replace(string1,‘,‘,‘‘)),-1) into num1 from dual; i:=1; o_note:=‘number‘; <<first_loop>> loop if i =num1 then dbms_output.put_line(‘迴圈已結束資料類型為‘||o_note); exit first_loop; end if; select to_number(substr(string1,instr(string1,‘,‘,1,i)+1,instr(string1,‘,‘,1,i+1)-instr(string1,‘,‘,1,i)-1)) into num2 from dual; IF num2<48 or num2>57 then o_note:=‘string‘; return; end IF; i:=i+1; end loop fst_loop; dbms_output.put_line(‘LOOP迴圈已經結束!‘); else o_note:=‘null‘; end if; end;
函數
create or replace function func_isNum(I_STRING in varchar2) return varchar2--傳回型別 is string1 varchar2(1000);--欄位通過dump()轉換後 num1 number(20);--欄位中字元的個數 num2 number(20);--ASCII比較變數 i number(20);--迴圈累積變數 o_note varchar2(20);--傳回型別 begin IF I_String is not null then select ‘,‘||substr(dump(I_STRING),instr(dump(I_STRING),‘:‘)+1,length(dump(I_STRING))-instr(dump(I_STRING),‘:‘))||‘,‘ into string1 from dual; select nvl(length(string1)-length(replace(string1,‘,‘,‘‘)),-1) into num1 from dual; i:=1; o_note:=‘number‘; <<first_loop>> loop if i =num1 then dbms_output.put_line(‘迴圈已結束資料類型為‘||o_note); exit first_loop; end if; select to_number(substr(string1,instr(string1,‘,‘,1,i)+1,instr(string1,‘,‘,1,i+1)-instr(string1,‘,‘,1,i)-1)) into num2 from dual; IF num2<48 or num2>57 then o_note:=‘string‘; end IF; i:=i+1; end loop fst_loop; dbms_output.put_line(‘LOOP迴圈已經結束!‘); else o_note:=‘null‘; end if; return o_note; end;
oracle 檢查字元中資料類型 函數&預存程序