大约有 3,551 项符合查询结果(耗时:0.0231秒) [XML]

https://stackoverflow.com/ques... 

How to Get True Size of MySQL Database?

I would like to know how much space does my MySQL database use, in order to select a web host. I found the command SHOW TABLE STATUS LIKE 'table_name' so when I do the query, I get something like this: ...
https://stackoverflow.com/ques... 

Comet implementation for ASP.NET? [closed]

...-side support for .NET/Mono and PHP. Clustering is supported using either SQL Server or Azure Caching out of the box, but custom providers can be written for just about anything (Redis, NCache). Disclaimer: I work for the company that develops this product. ...
https://stackoverflow.com/ques... 

Mysql: Select rows from a table that are not in another

...his only works as expected when none of the columns have NULL values. In MySQL NULL != NULL so every row that has a NULL value will be returned even if there is a duplicate row in the second table. – Kyle Kochis Apr 7 '15 at 2:49 ...
https://stackoverflow.com/ques... 

How to alter a column and change the default value?

... In case the above does not work for you (i.e.: you are working with new SQL or Azure) try the following: 1) drop existing column constraint (if any): ALTER TABLE [table_name] DROP CONSTRAINT DF_my_constraint 2) create a new one: ALTER TABLE [table_name] ADD CONSTRAINT DF_my_constraint DEFAU...
https://stackoverflow.com/ques... 

SQLite DateTime comparison

I can't seem to get reliable results from the query against a sqlite database using a datetime string as a comparison as so: ...
https://stackoverflow.com/ques... 

How to develop and test an app that sends emails (without filling someone's mailbox with test data)?

...r me every time a mail is received (running smtp4dev on win7, sending from SQL Server Database Mail Test E-mail script) – Jona Dec 6 '11 at 13:17 ...
https://stackoverflow.com/ques... 

How do I sort a list of dictionaries by a value of the dictionary?

... Anyway to combine name and age ? (like in SQL ORDER BY name,age ?) – monojohnny Feb 17 '10 at 13:10 ...
https://stackoverflow.com/ques... 

How to list all the available keyspaces in Cassandra?

...yspaces; If you want to check the keyspace in the system schema using the SQL query below is the command. SELECT * FROM system_schema.keyspaces; Hope this will answer your question... You can go through the explanation on understanding and creating the keyspaces from below resources. Docum...
https://stackoverflow.com/ques... 

Version of SQLite used in Android?

What is the version of SQLite used in Android? 5 Answers 5 ...
https://stackoverflow.com/ques... 

start MySQL server from command line on Mac OS Lion

I installed mySQL for my Mac. Beside starting the SQL server with mySQL.prefPane tool installed in System Preference, I want to know the instruction to start from command-line. I do as follow: ...