大约有 3,620 项符合查询结果（耗时：0.0141秒） [XML]
Find most frequent value in SQL column
How can I find the most frequent value in a given column in an SQL table?
9 Answers
9
...
Write a number with two decimal places SQL server
How do you write a number with two decimal places for sql server?
10 Answers
10
...
SQL statement to get column type
Is there a SQL statement that can return the type of a column in a table?
22 Answers
2...
How to catch SQLServer timeout exceptions
I need to specifically catch SQL server timeout exceptions so that they can be handled differently. I know I could catch the SqlException and then check if the message string Contains "Timeout" but was wondering if there is a better way to do it?
...
Escaping ampersand character in SQL string
I am trying to query a certain row by name in my sql database and it has an ampersand. I tried to set an escape character and then escape the ampersand, but for some reason this isn't working and I'm uncertain as to what exactly my problem is.
...
How to calculate percentage with a SQL statement
I have a SQL Server table that contains users & their grades. For simplicity's sake, lets just say there are 2 columns - name & grade . So a typical row would be Name: "John Doe", Grade:"A".
...
What is the Oracle equivalent of SQL Server's IsNull() function?
In SQL Server we can type IsNull() to determine if a field is null. Is there an equivalent function in PL/SQL?
4 Answers...
When would I use XML instead of SQL? [closed]
...an the approach I've always used, which is storing all of my data in a (My)SQL database and then using PHP/Python/etc. to work with it on the web as needed.
...
Restore a postgres backup file using the command line?
I'm new to postgresql, and locally, I use pgadmin3. On the remote server, however, I have no such luxury.
24 Answers
...
How do I split a string so I can access item x?
Using SQL Server, how do I split a string so I can access item x?
44 Answers
44
...