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Use tnsnames.ora in Oracle SQL Developer
... I downloaded and installed the Oracle SQL Developer to connect to an already existing Oracle 11g database. But it seems that I will need to download and install Oracle client software also, which one do I use if I am on Windows 10?
– VoodooChild
Sep 14 '16 ...
Javascript Regex: How to put a variable inside a regular expression?
...str2);
Then you can construct regexstring in any way you want.
You can read more about it here.
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What is a None value?
I have been studying Python, and I read a chapter which describes the None value, but unfortunately this book isn't very clear at some points. I thought that I would find the answer to my question, if I share it there.
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Which is more efficient, a for-each loop, or an iterator?
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If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater.
If however, you mean by loop the old "c-style" loop:
for(int i=0...
Get underlined text with Markdown
...tax to underline text.
I guess this is because underlined text is hard to read, and that it's usually used for hyperlinks.
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Breaking out of nested loops [duplicate]
...iable. Naive, if you want, but I find it quite flexible and comfortable to read. Testing a variable may avoid testing again complex conditions and may also collect results from several tests in inner loops.
x_loop_must_break = False
for x in range(10):
for y in range(10):
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Can I have multiple primary keys in a single table?
...width of our non-clustered leaf nodes, increasing storage requirements and read accesses for seeks and scans of that non-clustered index; and (2) reduces fan-out from our clustered index increasing index height and index size, again increasing reads and storage requirements for our clustered indexes...
Values of disabled inputs will not be submitted
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Yes, all browsers should not submit the disabled inputs, as they are read-only.
More information (section 17.12.1)
Attribute definitions
disabled [CI] When set for a form control, this Boolean attribute
disables the control for user input. When set, the disabled attribute
has the...
Real World Example of the Strategy Pattern
I've been reading about the OCP principal and how to use the strategy pattern to accomplish this.
17 Answers
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How do I turn off the unlimited whitespace in IntelliJ editor?
...tcut is correct but didn't seem to work :/
– Matthew Read
Sep 1 '16 at 18:37
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