大约有 47,000 项符合查询结果(耗时:0.0296秒) [XML]

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How to break lines at a specific character in Notepad++?

... + h or Search -> Replace on the top menu Under the Search Mode group, select Regular expression In the Find what text field, type ],\s* In the Replace with text field, type ],\n Click Replace All share | ...
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How to bind RadioButtons to an enum?

..., Converter={StaticResource enumBooleanConverter}, ConverterParameter=FirstSelection}">first selection</RadioButton> <RadioButton IsChecked="{Binding Path=VeryLovelyEnum, Converter={StaticResource enumBooleanConverter}, ConverterParameter=TheOtherSelection}">the other selection&...
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Rails: How can I set default values in ActiveRecord?

... See Paul Russell's comment on this answer for more details If you're only selecting a subset of columns for a model (ie; using select in a query like Person.select(:firstname, :lastname).all) you will get a MissingAttributeError if your init method accesses a column that hasn't been included in the...
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IndexOf function in T-SQL

... CHARINDEX is what you are looking for select CHARINDEX('@', 'someone@somewhere.com') ----------- 8 (1 row(s) affected) -or- select CHARINDEX('c', 'abcde') ----------- 3 (1 row(s) affected) ...
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Should I use the datetime or timestamp data type in MySQL?

...o with the native format. You can do calculations within MySQL that way ("SELECT DATE_ADD(my_datetime, INTERVAL 1 DAY)") and it is simple to change the format of the value to a UNIX timestamp ("SELECT UNIX_TIMESTAMP(my_datetime)") when you query the record if you want to operate on it with PHP. ...
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Filling a DataSet or DataTable from a LINQ query result set

...order.Field<DateTime>("OrderDate") > new DateTime(2001, 8, 1) select order; // Create a table from the query. DataTable boundTable = query.CopyToDataTable<DataRow>(); Why won't that work for you? share ...
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How can you represent inheritance in a database?

...is is how you would have to query all the policies regardless of the type: SELECT date_issued, other_common_fields, 'MOTOR' AS type FROM policies_motor UNION ALL SELECT date_issued, other_common_fields, 'PROPERTY' AS type FROM policies_property; Note how adding new subtypes woul...
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Does the join order matter in SQL?

...t matter. The queries will return same results, as long as you change your selects from SELECT * to SELECT a.*, b.*, c.*. For (LEFT, RIGHT or FULL) OUTER joins, yes, the order matters - and (updated) things are much more complicated. First, outer joins are not commutative, so a LEFT JOIN b is no...
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IIS Express Immediately shutting-down running site after stopping web application

...debugging is stopped. Right click your project > click Properties > select the 'Web' tab on the left > uncheck the Enable Edit and Continue checkbox. share | improve this answer |...
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How to make join queries using Sequelize on Node.js

...id'}) Post.find({ where: { ...}, include: [User]}) Which will give you SELECT `posts`.*, `users`.`username` AS `users.username`, `users`.`email` AS `users.email`, `users`.`password` AS `users.password`, `users`.`sex` AS `users.sex`, `users`.`day_birth` AS `users.day_birth`, `users`.`mo...