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sqlite alter table add MULTIPLE columns in a single statement
...purpose to make the query be read as multiple lines.
Then I run this query and get multiple columns added in on run... So no not in one line, but yes in one query its possible.
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Why does writeObject throw java.io.NotSerializableException and how do I fix it?
I have this exception and I don't understand why it would be thrown or, how I should handle it.
3 Answers
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What's the result of += in C and C++?
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Semantics of the compound assignment operators is different in C and C++:
C99 standard, 6.5.16, part 3:
An assignment operator stores a value in the object designated by the left operand. An
assignment expression has the value of the left operand after the assignment, but is not an
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Why java.io.File doesn't have a close() method?
While java.io.RandomAccessFile does have a close() method java.io.File doesn't. Why is that? Is the file closed automatically on finalization or something?
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How to change int into int64?
...64 := int64(i)
fmt.Printf("%T %T", i, i64) // to print the data types of i and i64
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css rotate a pseudo :after or :before content:“”
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Inline elements can't be transformed, and pseudo elements are inline by default, so you must apply display: block or display: inline-block to transform them:
#whatever:after {
content:"\24B6";
display: inline-block;
-webkit-transform: rotate(30deg);...
Returning value that was passed into a method
... me: The string in .Returns<string> refers to the input parameter(s) and not the values you are returning.
– Jim
Jul 31 '15 at 15:13
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How to find available versions for a bower dependency
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You can use info command to get information
for example:
Open a terminal and type
bower info jquery-ui
You will get a list of available versions as well
BTW: You can search via your terminal with:
bower search jquery-ui
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Python Flask Intentional Empty Response
... similar) with certain properties so that it doesn't render the page again and doesn't do anything else either. I am trying to run a code on the server without generating any output
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SQLAlchemy: Creating vs. Reusing a Session
...on_commit=False) anytime you needed a new Session, except that its verbose and redundant, and I wanted to stop the proliferation of small-scale "helpers" that each approached the issue of this redundancy in some new and more confusing way.
So sessionmaker() is just a tool to help you create Session...