大约有 40,000 项符合查询结果（耗时：0.0757秒） [XML]
In Objective-C, what is the equivalent of Java's “instanceof” keyword?
...
|
edited Feb 11 '09 at 12:07
community wiki
...
Visual Studio replace tab with 4 spaces?
Is there a way to set TAB button to work as 4 spaces in Visual Studio 2010 instead of going to Edit->Advanced->Untabify Selected Lines?
...
How to find current transaction level?
...
Run this:
SELECT CASE transaction_isolation_level
WHEN 0 THEN 'Unspecified'
WHEN 1 THEN 'ReadUncommitted'
WHEN 2 THEN 'ReadCommitted'
WHEN 3 THEN 'Repeatable'
WHEN 4 THEN 'Serializable'
WHEN 5 THEN 'Snapshot' END AS TRANSACTION_ISOLATION_LEVEL
FROM sys.dm_exec_sessions
whe...
Difference between $(document.body) and $('body')
...venemajvenema
41.3k55 gold badges6363 silver badges106106 bronze badges
...
Member initialization while using delegated constructor
...
|
edited Aug 30 '12 at 5:34
answered Aug 30 '12 at 4:55
...
SQL Server IIF vs CASE
...ently came to know about the availability of IIF function in SQL Server 2012. I always use nested CASE in my queries. I want to know the exact purpose of the IIF statement and when should we prefer using IIF over CASE Statement in the query.
I mostly use nested CASE in my queries.
...
Wait for all promises to resolve
...ergiBergi
473k9393 gold badges764764 silver badges11091109 bronze badges
2
...
Efficient paging in SQLite with millions of records
... *
FROM MyTable
WHERE SomeColumn > LastValue
ORDER BY SomeColumn
LIMIT 100;
(This is explained with more detail on the SQLite wiki.)
When you have multiple sort columns (and SQLite 3.15 or later), you can use a row value comparison for this:
SELECT *
FROM MyTable
WHERE (SomeColumn, OtherColum...
How to save a data.frame in R?
...
Sacha EpskampSacha Epskamp
40.5k1616 gold badges100100 silver badges128128 bronze badges
...
Hibernate: Automatically creating/updating the db tables based on entity classes
...
104
I don't know if leaving hibernate off the front makes a difference.
The reference suggests it ...