大约有 40,000 项符合查询结果（耗时：0.0887秒） [XML]
JPA: what is the proper pattern for iterating over large result sets?
...
I think the example is not safe if there are new inserts during the batch process. The user must order based on a column where it is sure that newly inserted data will be on the end of the result list.
– Balazs Zsoldos
Nov 15 '12 a...
SQL join: selecting the last records in a one-to-many relationship
...mmend solving it:
SELECT c.*, p1.*
FROM customer c
JOIN purchase p1 ON (c.id = p1.customer_id)
LEFT OUTER JOIN purchase p2 ON (c.id = p2.customer_id AND
(p1.date < p2.date OR (p1.date = p2.date AND p1.id < p2.id)))
WHERE p2.id IS NULL;
Explanation: given a row p1, there should be no ro...
Use '=' or LIKE to compare strings in SQL?
...oulmerge
67.2k1818 gold badges109109 silver badges145145 bronze badges
add a comment
|
...
Android Fragments and animation
...Animations(R.anim.slide_in_left, R.anim.slide_out_right);
DetailsFragment newFragment = DetailsFragment.newInstance();
ft.replace(R.id.details_fragment_container, newFragment, "detailFragment");
// Start the animated transition.
ft.commit();
To achieve the same thing with hiding or showing a fr...
What is the difference between “git init” and “git init --bare”?
...irectory. This means that you can not edit files, commit your changes, add new files in that repository.
When --bare can be helpful? You and few other guys are working on the project and use git . You hosted the project on some server (amazon ec2). Each of you have your own machine and you push yo...
How do I escape a reserved word in Oracle?
...t the SaintAndrew not the Saint
2,43622 gold badges1515 silver badges2121 bronze badges
add a comment
...
Android SDK location
...
51
Even if it's something very offensive? ( actually i have no idea why i scribbled it out, but i'm glad people appreciate my fine computer ar...
How can I list all foreign keys referencing a given table in SQL Server?
...s...
select
t.name as TableWithForeignKey,
fk.constraint_column_id as FK_PartNo, c.
name as ForeignKeyColumn
from
sys.foreign_key_columns as fk
inner join
sys.tables as t on fk.parent_object_id = t.object_id
inner join
sys.columns as c on fk.parent_object_id = c.object...
Make error: missing separator
... |
edited Nov 3 '15 at 22:51
answered Nov 3 '15 at 9:57
yul...
Debugging Package Manager Console Update-Database Seed Method
...
The way I solved this was to open a new instance of Visual Studio and then open the same solution in this new instance of Visual Studio. I then attached the debugger in this new instance to the old instance (devenv.exe) while running the update-database comman...