大约有 3,551 项符合查询结果(耗时:0.0353秒) [XML]

https://stackoverflow.com/ques... 

Which is more efficient: Multiple MySQL tables or one large table?

I store various user details in my MySQL database. Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tabl...
https://stackoverflow.com/ques... 

How do DATETIME values work in SQLite?

...eating Android apps and need to save date/time of the creation record. The SQLite docs say, however, "SQLite does not have a storage class set aside for storing dates and/or times" and it's "capable of storing dates and times as TEXT, REAL, or INTEGER values". ...
https://stackoverflow.com/ques... 

How to pass the values from one activity to previous activity

...nd Parcelable Interface. It depend upon your project needs. A. Database SQLite is an Open Source Database which is embedded into Android. SQLite supports standard relational database features like SQL syntax, transactions and prepared statements. Tutorials -- http://www.vogella.com/articles/And...
https://stackoverflow.com/ques... 

Is floating-point math consistent in C#? Can it be?

...n at my company hosts the CLR runtime as a native C++ application (so does SQL Server). I suggest you google CorBindToRuntimeEx. – Jonathan Dickinson Aug 3 '11 at 10:02 ...
https://stackoverflow.com/ques... 

Convert columns to string in Pandas

I have the following DataFrame from a SQL query: 5 Answers 5 ...
https://stackoverflow.com/ques... 

Null vs. False vs. 0 in PHP

... a data value that doesn't exist in the database or is unknown. See dev.mysql.com/doc/refman/5.0/en/working-with-null.html or en.wikipedia.org/wiki/Null_%28SQL%29. – Eli Dec 5 '12 at 3:39 ...
https://stackoverflow.com/ques... 

What makes Lisp macros so special?

...you could write a macro that lets you say something like: (setvar *rows* (sql select count(*) from some-table where column1 = "Yes" and column2 like "some%string%") And thats not even getting into Reader macros. Hope this helps. ...
https://stackoverflow.com/ques... 

Types in MySQL: BigInt(20) vs Int(20)

... See http://dev.mysql.com/doc/refman/8.0/en/numeric-types.html INT is a four-byte signed integer. BIGINT is an eight-byte signed integer. They each accept no more and no fewer values than can be stored in their respective number of byte...
https://stackoverflow.com/ques... 

phpunit mock method multiple calls with different arguments

...is class has method called "Query ( string $query )", that method takes an SQL query string on input. Can I create mock for this class (DB) and set different return values for different Query method calls that depends on input query string? ...
https://stackoverflow.com/ques... 

Decompressing GZip Stream from HTTPClient Response

... dataset into a table with columns that were mapped to the JSON I utilized SQL bulk copy and the following class public class insert { public static string insertCategories(DataTable table) { SqlConnection objConnection = new SqlConnection(); //As specified in the Ap...