sql创建函数错误代码1064

Question

我需要创建一个函数，我在这里找到：http://vyaskn.tripod.com/code/propercase.txt它将文本转换为“ProperCase”，每个单词的第一个字母大写。

CREATE FUNCTION PROPERCASE 
(
-- The string to be converted to proper case 
@input VARCHAR(8000) 
) 
-- This function returns the proper case string of varchar type 
RETURNS VARCHAR(8000) 
AS 
BEGIN 
IF @input IS NULL 
BEGIN 
    -- Just return NULL if input string is NULL 
    RETURN NULL 
END 

-- Character variable declarations 
DECLARE @output VARCHAR(8000) 
-- Integer variable declarations 
DECLARE @ctr INT, @len INT, @found_at INT 
-- Constant declarations 
DECLARE @LOWER_CASE_a INT, @LOWER_CASE_z INT, @Delimiter CHAR(3), @UPPER_CASE_A INT, @UPPER_CASE_Z INT 

-- Variable/Constant initializations 
SET @ctr = 1 
SET @len = LEN(@input) 
SET @output = '' 
SET @LOWER_CASE_a = 97 
SET @LOWER_CASE_z = 122 
SET @Delimiter = ' ,-' 
SET @UPPER_CASE_A = 65 
SET @UPPER_CASE_Z = 90 

WHILE @ctr <= @len 
BEGIN 
    -- This loop will take care of reccuring white spaces 
    WHILE CHARINDEX(SUBSTRING(@input,@ctr,1), @Delimiter) > 0 
    BEGIN 
     SET @output = @output + SUBSTRING(@input,@ctr,1) 
     SET @ctr = @ctr + 1 
    END 

    IF ASCII(SUBSTRING(@input,@ctr,1)) BETWEEN @LOWER_CASE_a AND @LOWER_CASE_z 
    BEGIN 
     -- Converting the first character to upper case 
     SET @output = @output + UPPER(SUBSTRING(@input,@ctr,1)) 
    END 
    ELSE 
    BEGIN 
     SET @output = @output + SUBSTRING(@input,@ctr,1) 
    END 

    SET @ctr = @ctr + 1 

    WHILE CHARINDEX(SUBSTRING(@input,@ctr,1), @Delimiter) = 0 AND (@ctr <= @len) 
    BEGIN 
     IF ASCII(SUBSTRING(@input,@ctr,1)) BETWEEN @UPPER_CASE_A AND @UPPER_CASE_Z 
     BEGIN 
      SET @output = @output + LOWER(SUBSTRING(@input,@ctr,1)) 
     END 
     ELSE 
     BEGIN 
      SET @output = @output + SUBSTRING(@input,@ctr,1) 
     END 
     SET @ctr = @ctr + 1 
    END  
END 
RETURN @output 

END

我需要一个函数来做到这一点，但它给我的错误...

Answer 1

你正在使用MySQL，但你的语法是SQL Server。请阅读有关MySQL语法的文档，并将您的过程转换为使用该语法。主要构造是相同的，但语法有些不同。这里有一些事情要开始：

• 本地变量从不以@开头。
• IF是条件依次为THEN后跟任意数量的代码行，然后是END IF。 BEGIN...END构造不用于MySQL中的IF语句。
• 功能不同。您不会使用CHARINDEX，而是使用INSTR。

下面是相关的MySQL文档：http://dev.mysql.com/doc/refman/5.5/en/stored-routines-syntax.html和http://dev.mysql.com/doc/refman/5.5/en/sql-syntax-compound-statements.html。