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PgSQL
DECLARE @combine NVARCHAR(MAX)
SET @combine = ''
SELECT
@combine = @combine + ',' + empcode
FROM
emphr
PRINT @combine
123456789
DECLARE @combine NVARCHAR(MAX)SET @combine = '' SELECT @combine = @combine + ',' + empcodeFROM emphr PRINT @combine
HHKB键盘布局及指法图
图片修改自elitekeyboards.com
SQL Server：请不要在新创建的表中使用NText
 Important
ntext , text, and image data types will be removed in a future version of Microsoft SQL Server. Avoid using these data types in new development work, and plan to modify applications that currently use them. Use nvarchar(max), varchar(max), and varbinary(max) instead.
SQL Server中的NVARCHAR中的N是什么意思
Variable-length Unicode data with a maximum string length of 2^30 – 1 (1,073,741,823) bytes. Storage size, in bytes, is two times the string length that is entered.
The ISO synonym for ntext is national text.
转述：Internet Explorer 11：不要叫我IE
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv 11.0) like Gecko
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