1、Oracle中

创建代码：

create or replace type t_SplitTable as object

(

id integer,

valueStr varchar2(8000)

)

;

create or replace type t_Split_Table as table of t_SplitTable;

create or replace function Fun_SplitByDot(p_str varchar2, p_char varchar2) return t_Split_Table as v_table t_Split_Table := t_Split_Table();

v_num_id integer; v_var_data varchar2(2000); v_num_index integer; begin

select nvl(p_str, '') into v_var_data from dual; if length(v_var_data) = 0 then return v_table; --字符长度为0 ，退出

end if;

v_num_id := 1;

select instr(v_var_data, p_char) into v_num_index from dual; while(v_num_index > 0) loop

v_table.extend(); v_table(v_table.count) := t_SplitTable(v_num_id, substr(v_var_data, 0, v_num_index - 1));

v_num_id := v_num_id + 1; select substr(v_var_data, v_num_index + 1, length(v_var_data) - v_num_index) into v_var_data from dual; select instr(v_var_data, p_char) into v_num_index from dual; end loop; if length(v_var_data) > 0 then v_table.extend(); v_table(v_table.count) := t_SplitTable(v_num_id, v_var_data); end if;

return v_table;

end Fun_SplitByDot;

查询：

select * from table(fun_splitbydot('a,2000001481,c',','));

2、SqlServer

创建代码：

CREATE FUNCTION StringToTable(@StringX varchar(8000),@Split nvarchar(10))

RETURNS @TableResult TABLE(TableID nvarchar(20))

AS

BEGIN

DECLARE @Index int

DECLARE @LenIndex int

SELECT @LenIndex=LEN(@Split),@Index=CHARINDEX(@Split,@StringX,1)

WHILE (@Index>=1)

BEGIN

INSERT INTO @TableResult SELECT LEFT(@StringX,@Index-1)

SELECT

@StringX=RIGHT(@StringX,LEN(@StringX)-@Index-@LenIndex+1),@Index=CHARINDEX(@Split,@StringX,1)

END

IF(@StringX<>'') INSERT INTO @TableResult SELECT @StringX

RETURN

END

查询：

select * from StringToTable('01__02__03','__')

3、MySql

创建代码：

# 函数：func_split_TotalLength

DROP function IF EXISTS `func_split_TotalLength` ;

CREATE FUNCTION `func_split_TotalLength`

(f_string varchar(1000),f_delimiter varchar(5)) RETURNS int(11)

BEGIN

# 计算传入字符串的总length

return 1+(length(f_string) - length(replace(f_string,f_delimiter,'')));

END;

# 函数：func_split

DROP function IF EXISTS `func_split` ;

CREATE FUNCTION `func_split`

(f_string varchar(1000),f_delimiter varchar(5),f_order int) RETURNS varchar(255) CHARSET utf8

BEGIN

# 拆分传入的字符串，返回拆分后的新字符串

declare result varchar(255) default '';

set result = reverse(substring_index(reverse(substring_index(f_string,f_delimiter,f_order)),f_delimiter,1));

return result;

END;

# 存储过程：splitString

DROP PROCEDURE IF EXISTS `splitString` ;

CREATE PROCEDURE `splitString`

(IN f_string varchar(1000),IN f_delimiter varchar(5))

BEGIN

# 拆分结果

declare cnt int default 0;

declare i int default 0;

set cnt = func_split_TotalLength(f_string,f_delimiter);

DROP TABLE IF EXISTS `tmp_split`;

create temporary table `tmp_split` (`status` varchar(128) not null) DEFAULT CHARSET=utf8;

while i < cnt

do

set i = i + 1;

insert into tmp_split(`status`) values (func_split(f_string,f_delimiter,i));

end while;

END;

查询代码：

#测试是否能成功分割

#call splitString("apple,banana,orange,pears,grape",",");

#select * from tmp_split;

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2011-03-14 15:54

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分类:数据库

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