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Go to particular revision
...oincidence. Git has no concept of the "next" commit; history is a DAG with all arrows pointing backwards. You should run git log --oneline and stick the output into a text file for reference (the abbreviated sha1 sums it provides are guaranteed to be unique). Another option, if your history is linea...
How to use DISTINCT and ORDER BY in same SELECT statement?
...lified):
FROM MonitoringJob
SELECT Category, CreationDate i.e. add a so called extended sort key column
ORDER BY CreationDate DESC
SELECT Category i.e. remove the extended sort key column again from the result.
So, thanks to the SQL standard extended sort key column feature, it is totally possib...
How to use gitignore command in git
...working first time on git. I have pushed my branch on github and it pushed all the library and documents into the github. Now what can I do and how can I use gitignore command to avoid the same mistake again.
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Is there any way to call a function periodically in JavaScript?
Is there any way to call a function periodically in JavaScript?
9 Answers
9
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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
...olution:
Increasing the number of cursors on the database (if resources allow) or
Decreasing the number of threads in the application.
Cursor leak
The applications is not closing ResultSets (in JDBC) or cursors (in stored procedures on the database)
Solution: Cursor leaks are bugs; increasin...
What is compiler, linker, loader?
...'space', 'tab' and 'new line'.
Therefore this unit of compilation is also called "TOKENIZER". It also removes
the comments, generates symbol table and relocation table entries.
2) Syntactic Analyzer:
This unit check for the syntax in the code. For ex:
{
int a;
int b;
int c;
int d...
What is the best way to convert an array to a hash in Ruby
...n, please see Marc-André Lafortune's answer below.
This answer was originally offered as an alternative to approaches using flatten, which were the most highly upvoted at the time of writing. I should have clarified that I didn't intend to present this example as a best practice or an efficient ap...
When someone writes a new programming language, what do they write it IN?
...rst compilers for "high level languages" would have been written in whats called "assembly language". Assembly language is a language where each instruction in the language corresponds to a single instruction to the CPU. Its very low level language and extremely verbose and very labor intensive to w...
In Javascript, how to conditionally add a member to an object?
I would like to create an object with a member added conditionally.
The simple approach is:
22 Answers
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What's the point of OOP?
...sistency to the approaches that people take to modelling problem domains. All too often, the class is used simply for its syntactic sugar; it puts the functions for a record type into their own little namespace.
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