SQL SELECTname,SUBSTRING(name,1,1)ASInitial,SUBSTRING(name,3,2)ASThirdAndFourthCharactersFROMsys.databasesWHEREdatabase_id <5; 以下為結果集。 NAMEInitialThirdAndFourthCharacters mastermst tempdbtmp modelmde msdbmdb 以下是如何顯示字串常數abcdef的第二、第三和第四個字元。
3,3) returns 'SQL', SUBSTRING('MSSQLTips',6,3) returns 'Tip'. If you have a length below 1, SQL Server will count back although it will not return blanks. SUBSTRING('MSSQLTips',0,5) returns 'MSSQ' (so only 4 characters),...
Suppose we have a string and our requirement is to extract the last few characters from it. For this purpose, we can use theLEN()function along with the SUBSTRING() function. The LEN() function returns the string length. DECLARE@stringVARCHAR(50)='Hello, Read useful articles on MSSQLTIPS....
This example returns the last four characters from thePostalCodevariable beginning at the sixth character. SUBSTRING (@PostalCode,6,4) This example returns a zero-length string from a string literal. SUBSTRING ("Redmond",4,0) See Also
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SQL SELECTname,SUBSTRING(name,1,1)ASInitial,SUBSTRING(name,3,2)ASThirdAndFourthCharactersFROMsys.databasesWHEREdatabase_id <5; 下面是结果集。 name初始ThirdAndFourthCharacters 主mst tempdbtmp 模型mde msdbmdb 以下示例说明如何显示字符串常量abcdef中的第二个、第三个和第四个字符。
This example returns the last four characters from thePostalCodevariable beginning at the sixth character. SUBSTRING (@PostalCode,6,4) This example returns a zero-length string from a string literal. SUBSTRING ("Redmond",4,0) See Also
Microsoft SQL Server - Get first n alphanumeric characters with variable length, meeting ABCD-1234 or ABCD-1234567 format My MS SQL 2019 server version is 15.0.2080.9 (X64) I have a table like My requirement is to create another column in SELECT query, for each row to get...
SUBSTRING(Name,@Start,@Length) This example returns the last four characters from the PostalCode variable beginning at the sixth character.Copy SUBSTRING (@PostalCode,6,4) This example returns a zero-length string from a string literal.Copy SUBSTRING ("Redmond",4,0) See...
As you can see, the RIGHT function has expectedly taken the last three characters of the string passed into it, and the LEFT function has taken the first three. Pretty simple!CHARINDEXCHARINDEX is another simple function that accepts two arguments. The first argument is the charact...