热门标签：外呼系统改进湖南电脑外呼系统平台地图标注牌长沙智能外呼系统分享百度地图标注多个位置电销机器人公司 需要哪些牌照菏泽语音电销机器人加盟公司知名电销机器人价格广东防封卡外呼系统原理是什么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 --查询所以行,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为'||v_tabid(c)||' 记录的NAME为'||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为'||v_tabid(c)||' 记录的NAME为'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); --删除(返回被删除的行) 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为'||v_tabid(c)||' 记录的NAME为'||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为'||v_tabid(c)||' 记录的NAME为'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); /* 批fetch 语法: 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; --关 CLOSE v_mycursor; --输 FOR c IN v_tabid.first..v_tabid.last LOOP dbms_output.put_line('empno为'||v_tabid(c)||' 记录的NAME为'||v_tabname(c)); END LOOP; dbms_output.put_line('---------------------------------'); END; ２.－－－－－－－ forall DECLARE /*批forall 语法：动态字符串必须为insert/update/delete,不能为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'; --给前面4个部门加薪1０％，并返回结果到集合. FORALL j IN 1..4 execute immediate sql_str using 1.10,v_depts(j) RETURNING BULK COLLECT INTO v_tabname,v_tabsal; --显示结果 FOR j IN v_tabname.first..v_tabname.last LOOP dbms_output.put_line('雇员'||v_tabname(j) ||' 的薪水被提到'||v_tabsal(j)); END LOOP; dbms_output.put_line('---------------------------------'); --给后面4个部门加薪２０％，并返回结果到集合. FORALL j IN 5..8 execute immediate sql_str using 1.20,v_depts(j) RETURNING BULK COLLECT INTO v_tabname,v_tabsal; --显示结果(用notfound判断是否有结果集） IF SQL%NOTFOUND THEN dbms_output.put_line('无数据更新'); ELSE FOR j IN v_tabname.first..v_tabname.last LOOP dbms_output.put_line('雇员'||v_tabname(j) ||' 的薪水被提到'||v_tabsal(j)); END LOOP; END IF; END; ３.用一个值绑定绑定名称相同的值. 把sql语句用begin end括起来就能实现 如: execute immediate 'begin calc_stats(:x,:x,:y,:x,:y); end;' using a,b; 将Ａ与Ｘ绑定，当第二次出来不同名称时，与Ｂ绑定，以此类推
