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Is there any difference between “!=” and “” in Oracle Sql?
... to know if there are any differences in between the two not equal operators <> and != in Oracle.
4 Answers
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Long-held, incorrect programming assumptions [closed]
I am doing some research into common errors and poor assumptions made by junior (and perhaps senior) software engineers.
19...
Check number of arguments passed to a Bash script
I would like my Bash script to print an error message if the required argument count is not met.
10 Answers
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Origin null is not allowed by Access-Control-Allow-Origin
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Origin null is the local file system, so that suggests that you're loading the HTML page that does the load call via a file:/// URL (e.g., just double-clicking it in a local file browser or similar). Different browsers take d...
Disabled UIButton not faded or grey
... use following code:
sendButton.enabled = YES;
sendButton.alpha = 1.0;
or
sendButton.enabled = NO;
sendButton.alpha = 0.5;
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What are .a and .so files?
I'm currently trying to port a C application to AIX and am getting confused. What are .a and .so files and how are they used when building/running an application?
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Manipulating an Access database from Java without ODBC
I want to manipulate a Microsoft Access database (.accdb or .mdb file) from my Java project. I don't want to use the JDBC-ODBC Bridge and the Access ODBC driver from Microsoft because:
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Security of REST authentication schemes
...client authentication, SSL alone is NOT a viable authentication mechanism for a REST API. SSL without client authc only authenticates the server, which is irrelevant for most REST APIs because you really want to authenticate the client.
If you don't use TLS client authentication, you'll need to ...
Which terminal command to get just IP address and nothing else?
.../sbin/ifconfig eth0 | grep 'inet addr' | cut -d: -f2 | awk '{print $1}'
For MAC:
ifconfig | grep "inet " | grep -v 127.0.0.1 | cut -d\ -f2
Or for linux system
hostname -i | awk '{print $3}' # Ubuntu
hostname -i # Debian
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How can I generate Javadoc comments in Eclipse? [duplicate]
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For me the /**<NEWLINE> or Shift-Alt-J (or ⌘-⌥-J on a Mac) approach works best.
I dislike seeing Javadoc comments in source code that have been auto-generated and have not been updated with real content. As far as ...