我想用两个单引号替换一个单引号我要替换＆＃39; - ＆GT; ＆＃39;＆＃39;像这样

Question

我想用两个单引号替换一个单引号我要替换＆＃39; - ＆GT; ＆＃39;＆＃39;像这样 查询：

UPDATE UniqueProds
SET OtherInvoiceName = REPLACE(@otherInvoiceName, '', '''')
WHERE HnyProdid = @ProductID
    AND attid IS NULL OR attid = ''
    AND AcInvoice = REPLACE(@AcInvoiceName, '', '''')

Answer 1

对于匹配部分，您需要一个单引号来启动字符串，另外两个用于在字符串中嵌入一个单引号，以及一个最终单引号来关闭字符串。对于替换部件，如果要将单引号替换为两个相邻的单引号，则需要另外两个单引号。因此，假设语法的其余部分是OK：

update  UniqueProds 
set  OtherInvoiceName=REPLACE(@otherInvoiceName,'''','''''') 
where HnyProdid=@ProductID and attid is null or attid='' and
      AcInvoice=REPLACE(@AcInvoiceName, '''', '''''')

如果您的意思是用单引号'＆＃39;替换单引号"，那么很明显，答案会有所改变 - 匹配是相同但是更换更简单。

update  UniqueProds 
set  OtherInvoiceName=REPLACE(@otherInvoiceName,'''','"') 
where HnyProdid=@ProductID and attid is null or attid='' and
      AcInvoice=REPLACE(@AcInvoiceName, '''', '"')

Answer 2

AcInvoicName = txtAcInvoice.Text.Split('_')[1].ToString().Replace("'","''");