数组元素个数是固定的还是可变的? 下面这个是固定的DECLARE TYPE T_VARRAY IS VARRAY(3) OF VARCHAR2(20); V_VAR T_VARRAY := T_VARRAY('I', 'LOVE', 'STUDY'); BEGIN FOR I IN 1 .. V_VAR.COUNT LOOP DBMS_OUTPUT.PUT_LINE(V_VAR(I)); END LOOP; END; http://q.sohu.com/forum/5/topic/4254063
接受函数返回值, 定义变量接受 DECLARE TYPE T_VARRAY IS VARRAY(3) OF VARCHAR2(20); V_VAR T_VARRAY := T_VARRAY('I', 'LOVE', 'STUDY'); v_SQL varchar2(8000); V_GET_VALUE number(20); BEGIN V_SQL :=' INSERT INTO TABLE_T VALUES( ' ; FOR I IN 1 .. V_VAR.COUNT LOOP V_SQL := V_SQL || '''' ||V_VAR(I) || ''','; END LOOP; V_SQL :=V_SQL || ' )'; DBMS_OUTPUT.PUT_LINE(V_SQL);
功能描述:用指定分隔符切割输入的字符串,返回一维数组,每个数组元素为一个子串。源代码:CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2 (4000);CREATE OR REPLACE FUNCTION fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2) RETURN ty_str_split IS j INT := 0; i INT := 1; len INT := 0; len1 INT := 0; str VARCHAR2 (4000); str_split ty_str_split := ty_str_split (); BEGIN len := LENGTH (p_str); len1 := LENGTH (p_delimiter); WHILE j < len LOOP j := INSTR (p_str, p_delimiter, i); IF j = 0 THEN j := len; str := SUBSTR (p_str, i); str_split.EXTEND; str_split (str_split.COUNT) := str; IF i >= len THEN EXIT; END IF; ELSE str := SUBSTR (p_str, i, j - i); i := j + len1; str_split.EXTEND; str_split (str_split.COUNT) := str; END IF; END LOOP; RETURN str_split; END fn_split; /测试:DECLARE CURSOR c IS SELECT * FROM TABLE (CAST (fn_split ('1;;12;;123;;1234;;12345', ';;') AS ty_str_split ) ); r c%ROWTYPE; BEGIN OPEN c; LOOP FETCH c INTO r; EXIT WHEN c%NOTFOUND; DBMS_OUTPUT.put_line (r.column_value); END LOOP; CLOSE c; END; / 结果: 1 12 123 1234 12345本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/wangsong145/archive/2009/05/10/4164699.aspx
我在存储过程中实现把A,B,C,D分隔开,然后通过一个数组来存储这四个子串
array[1]=A
array[2]=B
array[3]=C
array[4]=D这样子要怎么做,小弟对于存储过程了解有限,只是通过网上查询知道可以这样实现,但在调试过程中一直出错,实在是辙了,请大家指教
下面这个是固定的DECLARE
TYPE T_VARRAY IS VARRAY(3) OF VARCHAR2(20);
V_VAR T_VARRAY := T_VARRAY('I', 'LOVE', 'STUDY');
BEGIN
FOR I IN 1 .. V_VAR.COUNT LOOP
DBMS_OUTPUT.PUT_LINE(V_VAR(I));
END LOOP;
END;
http://q.sohu.com/forum/5/topic/4254063
DECLARE
TYPE T_VARRAY IS VARRAY(3) OF VARCHAR2(20);
V_VAR T_VARRAY := T_VARRAY('I', 'LOVE', 'STUDY');
v_SQL varchar2(8000);
V_GET_VALUE number(20);
BEGIN
V_SQL :=' INSERT INTO TABLE_T VALUES( ' ;
FOR I IN 1 .. V_VAR.COUNT LOOP
V_SQL := V_SQL || '''' ||V_VAR(I) || ''',';
END LOOP;
V_SQL :=V_SQL || ' )';
DBMS_OUTPUT.PUT_LINE(V_SQL);
V_GET_VALUE := floor(200.123441);
DBMS_OUTPUT.PUT_LINE(V_GET_VALUE);
END;
RETURN ty_str_split
IS
j INT := 0;
i INT := 1;
len INT := 0;
len1 INT := 0;
str VARCHAR2 (4000);
str_split ty_str_split := ty_str_split ();
BEGIN
len := LENGTH (p_str);
len1 := LENGTH (p_delimiter); WHILE j < len
LOOP
j := INSTR (p_str, p_delimiter, i); IF j = 0
THEN
j := len;
str := SUBSTR (p_str, i);
str_split.EXTEND;
str_split (str_split.COUNT) := str; IF i >= len
THEN
EXIT;
END IF;
ELSE
str := SUBSTR (p_str, i, j - i);
i := j + len1;
str_split.EXTEND;
str_split (str_split.COUNT) := str;
END IF;
END LOOP; RETURN str_split;
END fn_split;
/测试:DECLARE
CURSOR c
IS
SELECT *
FROM TABLE (CAST (fn_split ('1;;12;;123;;1234;;12345', ';;') AS ty_str_split
)
); r c%ROWTYPE;
BEGIN
OPEN c; LOOP
FETCH c INTO r; EXIT WHEN c%NOTFOUND;
DBMS_OUTPUT.put_line (r.column_value);
END LOOP; CLOSE c;
END;
/ 结果:
1
12
123
1234
12345本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/wangsong145/archive/2009/05/10/4164699.aspx