大约有 40,000 项符合查询结果(耗时:0.0308秒) [XML]
Recommended SQL database design for tags or tagging [closed]
I've heard of a few ways to implement tagging; using a mapping table between TagID and ItemID (makes sense to me, but does it scale?), adding a fixed number of possible TagID columns to ItemID (seems like a bad idea), Keeping tags in a text column that's comma separated (sounds crazy but could work)...
How do I loop through or enumerate a JavaScript object?
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object literal iteration
Browser support you can see on Kangax's compat table
For old browser you have
Make a div fill up the remaining width
...) allowed width to be set, b) has the best browser support and c) wasn't a table
– Jayen
May 21 '15 at 5:27
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Storing sex (gender) in database
...the 'closest' data type would be tinyint with a CHECK constraint or lookup table as appropriate.
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Difference between database and schema
... between a Database and a Schema in SQL Server? Both are the containers of tables and data.
5 Answers
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How to select unique records by SQL
When I perform "SELECT * FROM table" I got results like below:
8 Answers
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Store JSON object in data attribute in HTML jQuery
... delete button (each button gets a different json object...) I have in the table by putting in the hmtl tag like I showed above. Is what you're suggesting going to allow me to associate each object with to the corresponding delete button? How would I do that, how would I use $('#myElement'). in the ...
Create code first, many to many, with additional fields in association table
... not possible to create a many-to-many relationship with a customized join table. In a many-to-many relationship EF manages the join table internally and hidden. It's a table without an Entity class in your model. To work with such a join table with additional properties you will have to create actu...
Programmatically creating Markdown tables in R with KnitR
...ver, one thing that I'm not seeing is an easy way to print data frames and tables using Markdown formatting (sort of like xtable , but with Markdown instead of LaTeX or HTML). I know that I can just embed the HTML output from xtable, but I was wondering if there were any Markdown-based solutions?
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Is SQL syntax case sensitive?
...OM, WHERE, etc), but are often written in all caps. However in some setups table and column names are case-sensitive. MySQL has a configuration option to enable/disable it. Usually case-sensitive table and column names are the default on Linux MySQL and case-insensitive used to be the default on Win...
