The first thing we need to do is use thecharindexto get the starting position to extract characters using the following syntax. This will be the first of the several different substring functions that I will le
Retrieves a portion of a large object value, referenced by a large object locator that has been returned from the server (returned by a fetch or a previous SQLGetSubString() call) during the current transaction.
SELECTname,SUBSTRING(name,1,1)ASInitial,SUBSTRING(name,3,2)ASThirdAndFourthCharactersFROMsys.databasesWHEREdatabase_id <5; 结果集如下。 name初始ThirdAndFourthCharacters mastermst tempdbtmp modelmde msdbmdb 若要显示字符串常量abcdef的第二、第三和第四个字符,请使用以下查询。
SELECTname,SUBSTRING(name,1,1)ASInitial,SUBSTRING(name,3,2)ASThirdAndFourthCharactersFROMsys.databasesWHEREdatabase_id <5; 结果集如下。 name初始ThirdAndFourthCharacters mastermst tempdbtmp modelmde msdbmdb 若要显示字符串常量abcdef的第二、第三和第四个字符,请使用以下查询。
Extracting a Substring from a String Here is a basic example. SELECT SUBSTRING('MSSQLTIPS.COM', 1, 9) The output of this query is “MSSQLTIPS” because the SUBSTRING function is extracting a substring that starts at position 1 in the input string and has a length of 9 characters. ...
SQL Server will count back although it will not return blanks. SUBSTRING('MSSQLTips',0,5) returns 'MSSQ' (so only 4 characters), while SUBSTRING('MSSQLTips',-4,5) returns the empty string ''. If “start” is bigger than length, the empty string is also returned. SUBSTRING('MSSQL...
Extracting only year from getdate() function... Extracting substring between two characters OR Delimeters using TSQL,SQLServer 2008 Extracting time from Date and converting it into 12 hour time extremely slow: WHERE not exists (select 1 from... failed because it contains a derived or constant ...
> SELECT substring_index('www.apache.org', '.', 2); www.apache 17.translate 替换某些字符串为 Examples:> SELECT translate('AaBbCc', 'abc', '123'); A1B2C3 18.get_json_object get_json_object(json_txt, path) - Extracts a json object frompath. ...
The XQuery functionsstring-lengthandsubstringcount each surrogate as two characters.The XQuery functionsstring-lengthandsubstringcount each surrogate as one character. PIVOTis allowed in a recursive common table expression (CTE) query. However, the query returns incorrect results when there are multiple ...
SQLUINTEGER fFuncs; SQLGetInfo(hdbc, SQL_STRING_FUNCTIONS, (SQLPOINTER)&fFuncs, sizeof(fFuncs), NULL); // SUBSTRING supported if (fFuncs & SQL_FN_STR_SUBSTRING) ; // do something // SUBSTRING not supported else ; // do something else Related Functions Returning the setting of a co...