大约有 25,000 项符合查询结果（耗时：0.0629秒） [XML]
select into in mysql
I am a MSSQL user and now I am converting my database to MySQL. I am writing the following query in MySQL:
2 Answers
...
Change File Extension Using C#
I have many file types: pdf, tiff, jpeg, bmp. etc.
My question is how can I change file extension?
I tried this:
5 Answers
...
“Header Search Paths” vs. “User Header Search Paths” in Xcode?
What's the difference? When would you use either?
1 Answer
1
...
adding header to python requests module
...
Active
Oldest
Votes
...
Weird “[]” after Java method signature
I looked at some Java code today, and I found some weird syntax:
4 Answers
4
...
sqlalchemy unique across multiple columns
Let's say that I have a class that represents locations. Locations "belong" to customers. Locations are identified by a unicode 10 character code. The "location code" should be unique among the locations for a specific customer.
...
List distinct values in a vector in R
How can I list the distinct values in a vector where the values are replicative? I mean, similarly to the following SQL statement:
...
Choose newline character in Notepad++
I notice that when I load a text file, Notepad++ will recognize and use whatever the newline character in that file is, \n or \r\n .
...
PatternSyntaxException: Illegal Repetition when using regex in Java
I don't know much regex, but I need to match a simple pattern. The following should return true,
2 Answers
...
How to create function that returns nothing
I want to write a function with pl/pgsql .
I'm using PostgresEnterprise Manager v3 and using shell to make a function, but in the shell I must define return type. If I don't define the return type, I'm not able to create a function.
...