你们如何选择第一封信?
例如,如果有一个名为ColumnX的栏目,它具有“货物”的价值,那么我是如何选择这封信的?
收到第1封<>战略的信 您可以使用:
<代码>SlectT LEFT(ColumnX, 1)
To do it for a word within a string is more complicated.
Select LEFT(COLUMNX, 1) From Table
http://msdn.microsoft.com/en-us/library/ms187748.aspx”rel=“noreferer” 附录
SELECT SUBSTRING(columnname, 1, 1) AS firstletter FROM tablename
您可使用T-SQL功能substring或ft。
Substring
SELECT substring(ColumnX,1,1) FROM YOURTABLENAME
<>光线>
SELECT LEFT(ColumnX, 1) FROM YOURTABLENAME
页: 1 表1
我希望这一帮助。
另一种选择!
SELECT CAST(your_col AS CHAR(1))
FROM your_table
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