小编use*_*947的帖子

SELECT 
    a.AccountNumber, a.FirstName, a.LastName, a.Address, a.City, a.State, 
    a.Zip, a.EmailAddress, a.PhoneNumber, a.LastUpdated, a.LastVisit, 
    a.TotalSales, a.AccountOpened, a.CustomText4 as StoreCode, 
    CASE
        WHEN (a.CustomText1 IS 'JAN') THEN '1' 
    END AS DOB, 
    GETDATE() as Extract_date
FROM 
    database.dbo.Customer a

CustomText1 列包含带有文本数据的月份数据.我正在尝试将JAN-DEC转换为数字.

CASE WHEN IS '' isn't working.

安装SQL 2012 Express后,我无法连接到localhost或(本地)到本地服务器.

我必须输入我的computername/instance名称才能连接到服务器.

谁能帮我这个？