大约有 40,000 项符合查询结果（耗时：0.0365秒） [XML]
SQL Joins Vs SQL Subqueries (Performance)?
...e result i was looking for was 739 elements.
My query at first was this:
SELECT p.id,
p.fixedId,
p.azienda_id,
p.categoria_id,
p.linea,
p.tipo,
p.nome
FROM prodotto p
WHERE p.azienda_id = 2699 AND p.anno = (
SELECT MAX(p2.anno)
FROM prodotto p2
WHERE p2.fixed...
Is it possible for git-merge to ignore line-ending differences?
...e.autoCRLF=false
Test that, when two lines are identical (but their eol chars), both DiffMerge or KDiff3 will ignore those line during a merge.
DOS script (note: the dos2unix command comes from here, and is used to simulate a Unix eol-style. That command has been copied in the directory mentione...
Copy tables from one database to another in SQL Server
... server? Use three part naming.
INSERT INTO bar..tblFoobar( *fieldlist* )
SELECT *fieldlist* FROM foo..tblFoobar
This just moves the data. If you want to move the table definition (and other attributes such as permissions and indexes), you'll have to do something else.
...
In SQL, what's the difference between count(column) and count(*)?
...a values(null,1)
insert #bla values(1,null)
insert #bla values(null,null)
select count(*),count(id),count(id2)
from #bla
results
7 3 2
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fo...
View a list of recent documents in Vim
... sort files by those most recently modified. Then one simply calls :e. and selects the file one wants.
This solution presupposes files are saved in one main directory so specified in .gvimrc. E.g.
cd ~/vim
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How to exclude specific folders or files from validation in Eclipse?
...ge below)
Note: In Eclipse Indigo you have to Right click the folder and select properties and then select resource in the left navigation.
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What does collation mean?
... is a correctly ordered list:
Namibia
número
ñandú
ñú
obra
ojo
By selecting the correct collation, you get all this done for you, automatically :-)
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...
How to concatenate string variables in Bash
...
While no special chars, nor spaces are used, double quotes, quotes and curly brackets are useless: var=myscript;var=$var.sh;echo $var would have same effects (This work under bash, dash, busybox and others).
– F. Hauri...
Best approach to remove time part of datetime in SQL Server
...
Strictly, method a is the least resource intensive:
a) select DATEADD(dd, DATEDIFF(dd, 0, getdate()), 0)
Proven less CPU intensive for same total duration a million rows by some one with way too much time on their hands: Most efficient way in SQL Server to get date from date+ti...
How to remove padding around buttons in Android?
...ound="@android:color/transparent"
android:button="@drawable/toggle_selector"
/>
set your drawable file to button attribute like: android:button="@drawable/toggle_selector"
Below is my toggle_selecter.xml file
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns...