大约有 47,000 项符合查询结果(耗时:0.0381秒) [XML]

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Firefox ignores option selected=“selected”

If you change a dropdown and refresh the page, Firefox seems to ignore the selected attribute. 20 Answers ...
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How to get primary key column in Oracle?

... SELECT cols.table_name, cols.column_name, cols.position, cons.status, cons.owner FROM all_constraints cons, all_cons_columns cols WHERE cols.table_name = 'TABLE_NAME' AND cons.constraint_type = 'P' AND cons.constraint_name = ...
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How can I search (case-insensitive) in a column using LIKE wildcard?

... SELECT * FROM trees WHERE trees.`title` COLLATE UTF8_GENERAL_CI LIKE '%elm%' Actually, if you add COLLATE UTF8_GENERAL_CI to your column's definition, you can just omit all these tricks: it will work automatically. ...
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Checking if a SQL Server login already exists

... From here If not Exists (select loginname from master.dbo.syslogins where name = @loginName and dbname = 'PUBS') Begin Select @SqlStatement = 'CREATE LOGIN ' + QUOTENAME(@loginName) + ' FROM WINDOWS WITH DEFAULT_DATABASE=[PUBS], DEFAULT...
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Count Rows in Doctrine QueryBuilder

... Something like: $qb = $entityManager->createQueryBuilder(); $qb->select('count(account.id)'); $qb->from('ZaysoCoreBundle:Account','account'); $count = $qb->getQuery()->getSingleScalarResult(); Some folks feel that expressions are somehow better than just using straight DQL. One...
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How can I select random files from a directory in bash?

I have a directory with about 2000 files. How can I select a random sample of N files through using either a bash script or a list of piped commands? ...
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Select objects based on value of variable in object using jq

... Adapted from this post on Processing JSON with jq, you can use the select(bool) like this: $ jq '.[] | select(.location=="Stockholm")' json { "location": "Stockholm", "name": "Walt" } { "location": "Stockholm", "name": "Donald" } ...
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How to see the values of a table variable at debug time in T-SQL?

... DECLARE @v XML = (SELECT * FROM <tablename> FOR XML AUTO) Insert the above statement at the point where you want to view the table's contents. The table's contents will be rendered as XML in the locals window, or you can add @v to the...
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PostgreSQL function for last inserted ID

...e: INSERT INTO persons (lastname,firstname) VALUES ('Smith', 'John'); SELECT currval('persons_id_seq'); The name of the sequence must be known, it's really arbitrary; in this example we assume that the table persons has an id column created with the SERIAL pseudo-type. To avoid relying on thi...
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Linq code to select one item

I find myself writing a lot of code like this to select one item that matches 7 Answers ...