oracle端怎么把字符串分割成數組?
(1)定義split_type類型:CREATE OR REPLACE TYPE split_type IS TABLE OF VARCHAR2 (4000) / (2)定義split函數:
CREATE OR REPLACE FUNCTION split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2) RETURN split_type IS j INT := 0; i INT := 1; len INT := 0; len1 INT := 0; str VARCHAR2 (4000)
; my_split split_type := split_type ()
; 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)
; my_split.EXTEND; my_split (my_split.COUNT) := str; IF i >= len THEN EXIT; END IF; ELSE str := SUBSTR (p_str, i, j - i); i := j + len1; my_split.EXTEND; my_split (my_split.COUNT) := str; END IF; END LOOP; RETURN my_split; END split; / (3)存儲過程中,使用類似 For T In ( select a,b,c,d from table (split('1,2,3,4',',')) ) Loop --注意下面的inserti語句,varchar類型的值需要補充引號上去 Execute Immediate ' insert into tableName set fieldName = '||T.a ; Execute Immediate 'commit'; End Loop; 的查詢語句,把分開的結果拼成sql語句并寫入到表中。