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Solving “The ObjectContext instance has been disposed and can no longer be used for operations that
...he grid. This means that you're doing lots of separate query operations to SQL Server, which are going to slow everything down. You can fix this issue by either making the related properties eager-loaded by default, or asking Entity Framework to include them in the results of this query by using the...
sqlalchemy: how to join several tables by one query?
I have the following SQLAlchemy mapped classes:
5 Answers
5
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Change SVN repository URL
...ng goes wrong).
The repo address and its UUID are saved in the .svn/wc.db SQLite database file in your working copy. Just open the database (e.g. in SQLite Browser), browse table REPOSITORY, and change the root and uuid column values to the new ones. You can find the UUID of the new repo by issuing...
Unit tests vs Functional tests
...ion between 2 or more systems/subsystems in your code. Example, checking a SQL query through an ORM, checks that ORM and database work well together. Functional Tests AKA End to End IMHO.
– graffic
Mar 26 '14 at 9:10
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What's the best CRLF (carriage return, line feed) handling strategy with Git?
...ava text diff=java
*.html text diff=html
*.css text
*.js text
*.sql text
*.csproj text merge=union
*.sln text merge=union eol=crlf
*.docx diff=astextplain
*.DOCX diff=astextplain
# absolute paths are ok, as are globs
/**/postinst* text eol=lf
# paths that don't start with / ...
Correct way of using JQuery-Mobile/Phonegap together?
...
this is work for me. base on dhaval,this sample when I learn using sqlite
<!DOCTYPE html>
<html>
<head>
<title>Cordova Sqlite+Jquery</title>
<script type="text/javascript" charset="utf-8" src="js/jquery-1.8.3.min.js"></script>
<script type="t...
LINQ OrderBy versus ThenBy
... the whole sequence)
It may well not work in other providers (e.g. LINQ to SQL)
It's basically not how OrderBy was designed to be used.
The point of OrderBy is to provide the "most important" ordering projection; then use ThenBy (repeatedly) to specify secondary, tertiary etc ordering projections....
What is the difference between BIT and TINYINT in MySQL?
... 64. The default is 1 if M is omitted.
This data type was added in MySQL
5.0.3 for MyISAM, and extended in 5.0.5 to MEMORY, InnoDB, BDB, and NDBCLUSTER. Before 5.0.3, BIT is a
synonym for TINYINT(1).
TINYINT[(M)] [UNSIGNED] [ZEROFILL]
A very small integer. The signed range
is -128 ...
What is the difference between persist() and merge() in JPA and Hibernate?
...e assigned generator, using merge instead of persist can cause a redundant SQL statement, therefore affecting performance.
Also, calling merge for managed entities is also a mistake since managed entities are automatically managed by Hibernate and their state is synchronized with the database recor...
Why is Lisp used for AI? [closed]
... minutes of macro work this week, I implemented an ad-hoc buggy version of SQL Select. It goes like this: (query SELECT * FROM dataset WHERE expr).
– Paul Nathan
Nov 12 '11 at 20:08
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