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How to create id with AUTO_INCREMENT on Oracle?
...NCREMENT by 1),
c2 VARCHAR2(10)
);
Alternatively, Oracle 12 also allows to use a sequence as a default value:
CREATE SEQUENCE dept_seq START WITH 1;
CREATE TABLE departments (
ID NUMBER(10) DEFAULT dept_seq.nextval NOT NULL,
DESCRIPTION VARCHAR2(50) NOT NULL);
ALTER T...
How to change max_allowed_packet size
...ading files larger than approx 1MB I get an error Packets larger than max_allowed_packet are not allowed.
12 Answers
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Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
... On Windows 7, I had to do this on git bash command prompt in order to run ssh-keygen. thanks.
– Rots
Jun 27 '13 at 9:47
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Remove leading or trailing spaces in an entire column of data
How do I remove leading or trailing spaces of all cells in an entire column?
6 Answers
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What is “assert” in JavaScript?
...on is false; this is part of the general concept of assertion checking. Usually assertions (as they're called) are used only in "testing" or "debug" builds and stripped out of production code.
Suppose you had a function that was supposed to always accept a string. You'd want to know if someone call...
Declaring an enum within a class
...owing code snippet, the Color enum is declared within the Car class in order to limit the scope of the enum and to try not to "pollute" the global namespace.
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What is a web service endpoint?
...lication. The same web service can have multiple endpoints, for example in order to make it available using different protocols.
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how to read System environment variable in Spring applicationContext
...Denv=QA should solve your problem.
Note also a comment by @yiling:
In order to access system environment variable, that is OS level
variables as amoe commented, we can simply use "systemEnvironment"
instead of "systemProperties" in that EL. Like
#{systemEnvironment['ENV_VARIABLE_NAME']}
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Linking to an external URL in Javadoc?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Is it possible to get element from HashMap by its position?
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HashMaps do not preserve ordering:
This class makes no guarantees as to
the order of the map; in particular,
it does not guarantee that the order
will remain constant over time.
Take a look at LinkedHashMap, which guarantees a predictable...