大约有 37,000 项符合查询结果(耗时:0.0301秒) [XML]

https://stackoverflow.com/ques... 

How to Create Multiple Where Clause Query Using Laravel Eloquent?

... You can also pass an array of conditions like this: $users = DB::table('users')->where([ ['status', '=', '1'], ['subscribed', '<>', '1'], ])->get(); – zeros-and-ones Sep 15 '16 at 19:19 ...
https://stackoverflow.com/ques... 

MySQL/SQL: Group by date only on a Datetime column

Having a table with a column like: mydate DATETIME ... 4 Answers 4 ...
https://stackoverflow.com/ques... 

Find all storage devices attached to a Linux machine [closed]

I have a need to find all of the writable storage devices attached to a given machine, whether or not they are mounted. 7...
https://stackoverflow.com/ques... 

How can I prevent SQL injection in PHP?

...ng "'Sarah'; DELETE FROM employees", and you will not end up with an empty table. Another benefit of using prepared statements is that if you execute the same statement many times in the same session it will only be parsed and compiled once, giving you some speed gains. Oh, and since you asked abo...
https://stackoverflow.com/ques... 

Is there a way to access the “previous row” value in a SELECT statement?

I need to calculate the difference of a column between two lines of a table. Is there any way I can do this directly in SQL? I'm using Microsoft SQL Server 2008. ...
https://stackoverflow.com/ques... 

Practical uses of different data structures [closed]

...ound the list in a similar question, previously on StackOverflow: Hash Table - used for fast data lookup - symbol table for compilers, database indexing, caches,Unique data representation. Trie - dictionary, such as one found on a mobile telephone for autocompletion and spell-checking. ...
https://stackoverflow.com/ques... 

How do I convert from BLOB to TEXT in MySQL?

... Usage: SELECT CONVERT(column USING utf8) FROM table; – bmaupin Oct 2 '12 at 19:32 4 ...
https://stackoverflow.com/ques... 

Spring JPA selecting specific columns

...ase operations. However I don't know how to select specific columns from a table in Spring JPA? 14 Answers ...
https://stackoverflow.com/ques... 

Is having an 'OR' in an INNER JOIN condition a bad idea?

... to improve the speed of an immensely slow query (several minutes on two tables with only ~50,000 rows each, on SQL Server 2008 if it matters), I narrowed down the problem to an OR in my inner join, as in: ...
https://stackoverflow.com/ques... 

LINQ-to-SQL vs stored procedures? [closed]

...umber of supported databases will only increase. Sprocs are not always portable between databases, either because of varying syntax or feature support (if the database supports sprocs at all). Deployment: Others have mentioned this already, but it's easier to deploy a single assembly than to deploy...