１. DECLARE TYPE ref_cursor_type IS ref CURSOR; v_mycursor ref_cursor_type; TYPE id_list IS TABLE OF integer; TYPE name_list IS TABLE OF varchar2(30); v_tabid id_list:=id_list(); v_tabname name_list:=name_list(); sql_str varchar2(200); BEGIN --查詢所以行,放在集合里 sql_str:='select empno,ename from emp'; sql_str:=sql_str||' order by empno desc'; execute immediate sql_str BULK COLLECT INTO v_tabid,v_tabname; FOR c IN v_tabid.first..v_tabid.last LOOP dbms_output.put_line('empno為'||v_tabid(c)||' 記錄的NAME為'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); --更新(返回更新后的值) sql_str:='update emp set empno=1+empno,ename=''a'' where rownum=1 RETURNING empno,ename into :1,:2 '; execute immediate sql_str RETURNING BULK COLLECT INTO v_tabid, v_tabname; FOR c IN v_tabid.first..v_tabid.last LOOP dbms_output.put_line('empno為'||v_tabid(c)||' 記錄的NAME為'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); --刪除(返回被刪除的行) sql_str:='delete from emp where rownum=2 RETURNING empno,ename into :1,:2 '; execute immediate sql_str RETURNING BULK COLLECT INTO v_tabid, v_tabname; FOR c IN v_tabid.first..v_tabid.last LOOP dbms_output.put_line('empno為'||v_tabid(c)||' 記錄的NAME為'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); --插入(返回插入的行) sql_str:='insert into emp(empno,ename) values(1,''abc'') RETURNING empno,ename into :1,:2 '; execute immediate sql_str RETURNING BULK COLLECT INTO v_tabid, v_tabname; FOR c IN v_tabid.first..v_tabid.last LOOP dbms_output.put_line('empno為'||v_tabid(c)||' 記錄的NAME為'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); /* 批fetch 語法: fetch dynamic_cursor bulk collect into define_variable[,define_variable...] */ sql_str:='select empno,ename from emp'; sql_str:=sql_str||' order by empno desc'; OPEN v_mycursor FOR sql_str; --取 FETCH v_mycursor BULK COLLECT INTO v_tabid,v_tabname; --關 CLOSE v_mycursor; --輸 FOR c IN v_tabid.first..v_tabid.last LOOP dbms_output.put_line('empno為'||v_tabid(c)||' 記錄的NAME為'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); END; ２.－－－－－－－ forall DECLARE /*批forall 語法：動態字符串必須為insert/update/delete,不能為select forall index in lower..upper execute immediate dynamic_string using bind |bind(index)[,bind |bind(index)...] [{returning|return} bulk collect into bind_argument[,bind_argument...]]; */ TYPE sal_list IS TABLE OF number(8,2); TYPE name_list IS TABLE OF varchar2(30); TYPE dept_list IS VARRAY(15) OF integer; v_depts dept_list:=dept_list(10,20,30,40,50,60,70,80); v_tabsal sal_list:=sal_list(); v_tabname name_list:=name_list(); sql_str varchar2(200); BEGIN sql_str:='update emp set sal=sal*:arg1 where DEPTNO=:arg2'; sql_str:=sql_str||' returning ename,sal into :arg3,:arg4'; --給前面4個部門加薪1０％，并返回結果到集合. FORALL j IN 1..4 execute immediate sql_str using 1.10,v_depts(j) RETURNING BULK COLLECT INTO v_tabname,v_tabsal; --顯示結果 FOR j IN v_tabname.first..v_tabname.last LOOP dbms_output.put_line('雇員'||v_tabname(j) ||' 的薪水被提到'||v_tabsal(j)); END LOOP; dbms_output.put_line('---------------------------------'); --給后面4個部門加薪２０％，并返回結果到集合. FORALL j IN 5..8 execute immediate sql_str using 1.20,v_depts(j) RETURNING BULK COLLECT INTO v_tabname,v_tabsal; --顯示結果(用notfound判斷是否有結果集） IF SQL%NOTFOUND THEN dbms_output.put_line('無數據更新'); ELSE FOR j IN v_tabname.first..v_tabname.last LOOP dbms_output.put_line('雇員'||v_tabname(j) ||' 的薪水被提到'||v_tabsal(j)); END LOOP; END IF; END; ３.用一個值綁定綁定名稱相同的值. 把sql語句用begin end括起來就能實現 如: execute immediate 'begin calc_stats(:x,:x,:y,:x,:y); end;' using a,b; 將Ａ與Ｘ綁定，當第二次出來不同名稱時，與Ｂ綁定，以此類推
