If theCHARINDEXof ',' is greater than one we use it's value, if it's not then we use th...
USEpubs;SELECTpub_id,SUBSTRING(logo,1,10)ASlogo,SUBSTRING(pr_info,1,10)ASpr_infoFROMpub_infoWHEREpub_id ='1756'; 结果集如下。 pub_id logo pr_info --- --- --- 1756 0x474946383961E3002500 This is sa (1 row(s) affected) 以下示例说明 SUBSTRING 对 text 和 ntext 数据...
USEpubs;SELECTpub_id,SUBSTRING(logo,1,10)ASlogo,SUBSTRING(pr_info,1,10)ASpr_infoFROMpub_infoWHEREpub_id ='1756'; 结果集如下。 pub_id logo pr_info --- --- --- 1756 0x474946383961E3002500 This is sa (1 row(s) affected) 以下示例说明 SUBSTRING 对 text 和 ntext 数据...
DECLARE@stringvarchar(50)='Hello world'SELECTSUBSTRING(@string,1,CHARINDEX(' ',@string))asfirstpart,SUBSTRING(@string,CHARINDEX(' ',@string),LEN(@string)+1-CHARINDEX(' ',@string))assecondpart Copy Use SUBSTRING to Break Apart Email Address The following example will separate the name from t...
SUBSTRING CONSTRAINTS JOIN SUM CONTINUE KEY SYSTEM_USER CONVERT LANGUAGE TABLE CORRESPONDING LAST TEMPORARY COUNT LEADING THEN CREATE LEFT TIME CROSS LEVEL TIMESTAMP CURRENT LIKE TIMEZONE_HOUR CURRENT_DATE LOCAL TIMEZONE_MINUTE CURRENT_TIME LOWER ...
USE AdventureWorks; GO SELECT (LastName + ',' + SPACE(1) + SUBSTRING(FirstName, 1, 1) + '.') AS Name, e.Title FROM Person.Contact AS c JOIN HumanResources.Employee AS e ON c.ContactID = e.ContactID WHERE e.Title LIKE 'Vice%' ORDER BY LastName ASC; GO 下面是结果集。 复制...
How to use the SQL Server SUBSTRING function in the where clause How to dynamically locate the starting and end character position How to work with date-time string using the SQL Server SUBSTRING function How to Create a simple sub-select using the T-SQL SUBSTRING function And more… ...
various ways, such as removing unwanted characters, extracting meaningful information, and formatting data for specific purposes. By understanding how to use SUBSTRING effectively, we can improve the efficiency and accuracy of our SQL queries and make our database operations more streamlined and ...
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Now I'll write a simple query to show the use of SUBSTRING: SELECT SUBSTRING('HELLO WORLD',4,5) And now the results: As you can see. SUBSTRING includes spaces as a position within a string. So executing this query shows a "window" of the string that has been passed to...