Oracle PLSQL Demo - 31.执行动态SQL拿一个返回值

DECLARE
    v_sql   VARCHAR2(1000) := '';
    v_count NUMBER;
BEGIN
    v_sql := v_sql || 'select count(1) from scott.emp t';

    EXECUTE IMMEDIATE v_sql
        INTO v_count;
    dbms_output.put_line(v_count);
END;