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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
...le named test1, to which you want to add an auto-incrementing, primary-key id (surrogate) column. The following command should be sufficient in recent versions of PostgreSQL:
ALTER TABLE test1 ADD COLUMN id SERIAL PRIMARY KEY;
Older Versions of PostgreSQL
In old versions of PostgreSQL (prior ...
Disable a Maven plugin defined in a parent POM
...or me when disabling Findbugs in a child POM:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<executions>
<execution>
<id>ID_AS_IN_PARENT</id> <!-- id is necessary ...
Static link of shared library function in gcc
...m the .a static lib are those referenced (and unresolved) by the .so. This means that if binA references a symbol in libC.a, not referenced anywhere in libB.so, then even if binA links to libB.so, that symbol will be undefined (unless -Wl,--whole-archive is used when linking libB.so).
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Entity Framework - Invalid Column Name '*_ID"
...answered Dec 18 '13 at 8:23
drewiddrewid
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Sequelize.js delete query?
... It's a pretty old question so at the time I guess Sequelize didn't have a destroy method surprisingly
– ncksllvn
Jun 16 '16 at 18:39
3
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What does the variable $this mean in PHP?
I see the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it.
10 An...
What is boilerplate code?
...
Boilerplate code means a piece of code which can be used over and over again. On the other hand, anyone can say that it's a piece of reusable code.
The term actually came from the steel industries.
For a little bit of history, according to ...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
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static $id = 0;
static $ct = 0;
$ct_last = $ct;
&...
android.widget.Switch - on/off event listener?
I would like to implement a switch button, android.widget.Switch (available from API v.14).
10 Answers
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How is the default submit button on an HTML form determined?
...there's anything in any spec to the effect of "If the browser provides any means of submitting a form without specifying a submit control...". But I gather from David's reply that there isn't. My point about IE was that sometimes pressing Enter submits a form and doesn't set any submit button. A ...