DBMS_SQL.LAST_ROW_COUNT返回的结果是什么，一般怎么用
DBMS_SQL.LAST_ROW_COUNT返回的结果是什么，一般怎么用

------解决方案--------------------
LAST_ROW_COUNT
返回 INTEGER 取回记录的累计数
 
------解决方案--------------------
DECLARE
curid INTEGER;
v_empno NUMBER(4);
v_ename VARCHAR2(10);
v_hiredate DATE;
v_sal NUMBER(7,2);
v_comm NUMBER(7,2);
v_sql VARCHAR2(100) := 'SELECT empno, ename, hiredate, sal, ' ||
'comm FROM scott.emp';
v_status INTEGER;
BEGIN
curid := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(curid,v_sql,DBMS_SQL.native);
DBMS_SQL.DEFINE_COLUMN(curid,1,v_empno);
DBMS_SQL.DEFINE_COLUMN(curid,2,v_ename,10);
DBMS_SQL.DEFINE_COLUMN(curid,3,v_hiredate);
DBMS_SQL.DEFINE_COLUMN(curid,4,v_sal);
DBMS_SQL.DEFINE_COLUMN(curid,5,v_comm);
v_status := DBMS_SQL.EXECUTE(curid);
DBMS_OUTPUT.PUT_LINE('EMPNO ENAME HIREDATE SAL COMM');
DBMS_OUTPUT.PUT_LINE('----- ---------- ---------- -------- ' ||
'--------');
LOOP
v_status := DBMS_SQL.FETCH_ROWS(curid);
EXIT WHEN v_status = 0;
DBMS_SQL.COLUMN_VALUE(curid,1,v_empno);
DBMS_SQL.COLUMN_VALUE(curid,2,v_ename);
DBMS_SQL.COLUMN_VALUE(curid,3,v_hiredate);
DBMS_SQL.COLUMN_VALUE(curid,4,v_sal);
DBMS_SQL.COLUMN_VALUE(curid,4,v_sal);
DBMS_SQL.COLUMN_VALUE(curid,5,v_comm);
DBMS_OUTPUT.PUT_LINE(v_empno || ' ' || RPAD(v_ename,10) || ' ' ||
TO_CHAR(v_hiredate,'yyyy-mm-dd') || ' ' ||
TO_CHAR(v_sal,'9,999.99') || ' ' ||
TO_CHAR(NVL(v_comm,0),'9,999.99'));
END LOOP;
DBMS_OUTPUT.PUT_LINE('Number of rows: ' || DBMS_SQL.LAST_ROW_COUNT);
DBMS_SQL.CLOSE_CURSOR(curid);
END;
------解决方案--------------------
DBSM_SQL.LAST_ROW_COUNT函数返回的是被处理的最后一行记录的ROWID