_(:_」∠)_ _(:_」∠)_ _(:_」∠)_骗访问量系列_(:_」∠)_ _(:_」∠)_ _(:_」∠)_
题目描述：
对员工表中所有员工的姓名做如下处理：姓名的首字母在‘A‘到‘G‘ 之间，合并为第一个字符串，在‘H‘到‘O‘之间，合并为第二个字符串，在‘P‘到‘Z‘之间，合并为第三个字符串，姓名之间用空格相隔。
代码：
DECLARE str1 string(100); str2 string(100); str3 string(100); CURSOR NAME_AG IS SELECT ENAME FROM EMP WHERE substr(ENAME,0,1) BETWEEN ‘A‘ AND ‘G‘; name1 emp.ENAME%TYPE; CURSOR NAME_HO IS SELECT ENAME FROM EMP WHERE substr(ENAME,0,1) BETWEEN ‘H‘ AND ‘O‘; name2 emp.ENAME%TYPE; CURSOR NAME_PZ IS SELECT ENAME FROM EMP WHERE substr(ENAME,0,1) BETWEEN ‘P‘ AND ‘Z‘; name3 emp.ENAME%TYPE; BEGIN OPEN NAME_AG; OPEN NAME_HO; OPEN NAME_PZ; LOOP FETCH NAME_AG INTO name1; EXIT WHEN NAME_AG%NOTFOUND; str1:=str1||name1||‘ ‘; END LOOP; LOOP FETCH NAME_HO INTO name2; EXIT WHEN NAME_HO%NOTFOUND; str2:=str2||name2||‘ ‘; END LOOP; LOOP FETCH NAME_PZ INTO name3; EXIT WHEN NAME_PZ%NOTFOUND; str3:=str3||name3||‘ ‘; END LOOP; dbms_output.put_line(str1); dbms_output.put_line(str2); dbms_output.put_line(str3); END;