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How to add not null constraint to existing column in MySQL
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Just use an ALTER TABLE... MODIFY... query and add NOT NULL into your existing column definition. For example:
ALTER TABLE Person MODIFY P_Id INT(11) NOT NULL;
A word of caution: you need to specify the full column definition again when using a MODIFY query. If you...
UNIX export command [closed]
I am trying to understand the use of export command.
4 Answers
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GUI Tool for PostgreSQL [closed]
...the PostgreSQL Wiki:
https://wiki.postgresql.org/wiki/PostgreSQL_Clients
And of course PostgreSQL itself comes with pgAdmin, a GUI tool for accessing Postgres databases.
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Charts for Android [closed]
I am working on a project which have some charts (graphs), tick chart, candlestick chart and range chart. But the problem is, there is no library for that charts. I have got Google chart API for candlestick chart. But I don't want graph/chart in a webview.
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Accessing clicked element in angularjs
I'm relatively new to AngularJS and suspect I'm not grasping a concept. I'm also using Twitter Bootstrap and I've got jQuery loaded.
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Using Notepad++ to validate XML against an XSD
... an XSD file. The XML plugin is installed properly in the plugins subdir and the 3 DLLs are copied to the Notepad++ EXE subdirectory. Other XML "validation" features work but there is no way to validate against an XSD.
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How to grep a string in a directory and all its subdirectories? [duplicate]
How to grep a string or a text in a directory and all its subdirectories'files in LINUX ??
2 Answers
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Correct way to integrate jQuery plugins in AngularJS
...integrate jQuery plugins into my angular app. I've found several tutorials and screen-casts but they seem catered to a specific plugin.
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What is the difference between `Enum.name()` and `Enum.toString()`? [duplicate]
...the documentation of String java.lang.Enum.name() I am not sure I understand when to use name() and when to use toString() .
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Only mkdir if it does not exist [duplicate]
...conditions in concurrent execution. So, depending on what your script does and in which environment it lives the first option given is this answer should be preferred. Also, you could just mkdir product 2>/dev/null and not care.
– user1129682
Sep 4 '13 at 20...