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  • Oracle常用封装函数

     --根据指定的字符与分隔符,对字符串进行拆分,返回表值类型的结果集

     1 CREATE OR REPLACE FUNCTION MES1.strsplit(p_str       IN VARCHAR2 --字符串
     2                                         ,
     3                                          p_delimiter IN VARCHAR2 --分隔符
     4                                          ) RETURN ty_str_split IS
     5   --根据指定的字符与分隔符,对字符串进行拆分,返回表值类型的结果集
     6   j         INT := 0;
     7   i         INT := 1;
     8   len       INT := 0;
     9   len1      INT := 0;
    10   str       VARCHAR2(4000);
    11   str_split ty_str_split := ty_str_split();
    12 BEGIN
    13   len  := length(p_str);
    14   len1 := length(p_delimiter);
    15 
    16   WHILE j < len LOOP
    17     j := instr(p_str, p_delimiter, i);
    18   
    19     IF j = 0 THEN
    20       j   := len;
    21       str := substr(p_str, i);
    22       str_split.extend;
    23     
    24       str_split(str_split.count) := str;
    25     
    26       IF i >= len THEN
    27         EXIT;
    28       END IF;
    29     ELSE
    30       str := substr(p_str, i, j - i);
    31       i   := j + len1;
    32       str_split.extend;
    33       str_split(str_split.count) := str;
    34     END IF;
    35   END LOOP;
    36 
    37   RETURN str_split;
    38 END;
    View Code

    SELECT COLUMN_VALUES AS DATA1, ROWNUM RN
    FROM ( SELECT * FROM TABLE (MES1.STRSPLIT_TABLE_WQY ('1,2,3,', ',')))

    SELECT MES1.STRSPLIT_WQY ('1,2,3,', ',') FROM DUAL

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  • 原文地址:https://www.cnblogs.com/turnip/p/13355429.html
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