大约有 3,620 项符合查询结果（耗时：0.0241秒） [XML]
Is Mono ready for prime time? [closed]
...ort, as those have little to no dependencies on Win32 and you can even use SQL server or other popular databases (there are plenty of bundled database providers with Mono).
Windows.Forms porting is sometimes trickier because developers like to escape the .NET sandbox and P/Invoke their brains ou...
How to get a one-dimensional scalar array as a doctrine dql query result?
...array of values from the id column of the Auction table.
If this was a raw SQL I would write:
5 Answers
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postgresql: INSERT INTO … (SELECT * …)
I'm not sure if its standard SQL:
6 Answers
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Select DISTINCT individual columns in django?
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It's quite simple actually if you're using PostgreSQL, just use distinct(columns) (documentation).
Productorder.objects.all().distinct('category')
Note that this feature has been included in Django since 1.4
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Default string initialization: NULL or Empty? [closed]
...is no way to accurately represent, say, a varchar( 100 ) NOT NULL field in SQL Server using a C# type.
Other languages, such as Spec #, do allow this.
In my opinion, C#'s inability to define a string that doesn't allow null is just as bad as its previous inability to define an int that does allow ...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
I am fairly new to MySQL and I am getting a pretty interesting error on which I cannot find any help via google and the stackoverflow search.
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What does java:comp/env/ do?
... lookup using "java:comp/env/foo". Have a look at blog.cherouvim.com/javax-sql-datasource-exposed-through-jndi
– cherouvim
Nov 5 '10 at 7:57
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How do I print the full value of a long string in gdb?
...r_string. The output might be a bit harder to read. For example printing a SQL query results in:
(gdb) x/300sb stmt.c_str()
0x9cd948: "SELECT article.r"...
0x9cd958: "owid FROM articl"...
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How do I insert datetime value into a SQLite database?
I am trying to insert a datetime value into a SQLite database. It seems to be sucsessful but when I try to retrieve the value there is an error:
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Right query to get the current number of connections in a PostgreSQL DB
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Note that when the postgres command line tool, PSQL is used for executing this query, the total number of connections is the result of this query - 1 since the psql connection made is also included as a connection
– neonidian
Dec 13 '...