大约有 5,880 项符合查询结果(耗时:0.0453秒) [XML]

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SET versus SELECT when assigning variables?

... @var varchar(20) set @var = 'Joe' set @var = (select name from master.sys.tables where name = 'qwerty') select @var /* @var is now NULL */ set @var = 'Joe' select @var = name from master.sys.tables where name = 'qwerty' select @var /* @var is still equal to 'Joe' */ ...
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Make Iframe to fit 100% of container's remaining height

...ault and whitespace starts creating weird overflows otherwise. Option 2 - tables. Works when you don't know the height of the first part. You can use either actual <table> tags or do it the fancy way with display: table. I'll go for the latter because it seems to be in fashion these days. ...
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T-SQL split string

...CTION dbo.splitstring ( @stringToSplit VARCHAR(MAX) ) RETURNS @returnList TABLE ([Name] [nvarchar] (500)) AS BEGIN DECLARE @name NVARCHAR(255) DECLARE @pos INT WHILE CHARINDEX(',', @stringToSplit) > 0 BEGIN SELECT @pos = CHARINDEX(',', @stringToSplit) SELECT @name = SUBSTRING(@strin...
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Client-server synchronization pattern / algorithm?

...g every change (insert, update or delete) from any device into a "history" table. So if, for example, someone changes their phone number in the "contact" table, the system will edit the contact.phone field, and also add a history record with action=update, table=contact, field=phone, record=[contact...
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How to generate a range of numbers between two numbers?

... @Rafi the v(n) and hundreds(n) etc are table and column names/aliases – Twon-ha Oct 8 '19 at 14:13 add a comment  |  ...
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Generate sql insert script from excel worksheet

...ge file, but you can use Excel to create insert statements: ="INSERT INTO table_name VALUES('"&A1&"','"&B1&"','"&C1&"')" In MS SQL you can use: SET NOCOUNT ON To forego showing all the '1 row affected' comments. And if you are doing a lot of rows and it errors out, put...
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Excel “External table is not in the expected format.”

...o read an Excel (xlsx) file using the code shown below. I get an "External table is not in the expected format." error unless I have the file already open in Excel. In other words, I have to open the file in Excel first before I can read if from my C# program. The xlsx file is on a share on our netw...
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Possible reasons for timeout when trying to access EC2 instance

.../24 Create Internet Gateway Attach Internet Gateway to VPC Create Routing Table Add Route to Routing Table Destination: 0.0.0.0/0 Target: <Internet Gateway from earlier> Create Subnet CIDR: 10.0.0.0/24 Routing Table: <Routing Table from earlier It took me a LOT of fumbling to get all...
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2 column div layout: right column with fixed width, left fluid

... Simplest and most flexible solution so far it to use table display: HTML, left div comes first, right div comes second ... we read and write left to right, so it won't make any sense to place the divs right to left <div class="container"> <div class="left"> ...
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Vertically centering a div inside another div [duplicate]

... tl;dr Vertical align middle works, but you will have to use table-cell on your parent element and inline-block on the child. This solution is not going to work in IE6 & 7. Yours is the safer way to go for those. But since you tagged your question with CSS3 and HTML5 I was thinkin...