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Is there a Subversion command to reset the working copy?
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180
You can recursively revert like this:
svn revert --recursive .
There is no way (without writ...
How to add a filter class in Spring Boot?
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162
If you want to setup a third-party filter you can use FilterRegistrationBean.
For example the ...
Restrict varchar() column to specific values?
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128
Have you already looked at adding a check constraint on that column which would restrict value...
SQL how to increase or decrease one for a int column in one command
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To answer the first:
UPDATE Orders SET Quantity = Quantity + 1 WHERE ...
To answer the second:
There are several ways to do this. Since you did not specify a database, I will assume MySQL.
INSERT INTO table SET x=1, y=2 ON DUPLICATE KEY UPDATE x=x+1, y=y+2
REPLACE INTO table SET ...
delete_all vs destroy_all?
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edited May 23 '17 at 12:26
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answered Jul 14 '11 at 18:36
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Using {} in a case statement. Why?
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195
The {} denotes a new block of scope.
Consider the following very contrived example:
switch (...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
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581
They take up different amounts of space and they have different ranges of acceptable values.
He...
How to check size of a file using Bash?
...n easier way to check for file sizes instead. I.e. file.txt is normally 100k; how to make a script check if it is less than 90k (including 0), and make it do wget a new copy because the file is corrupt in this case.
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How can I use jQuery to make an input readonly?
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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
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184
When you do len(df['column name']) you are just getting one number, namely the number of rows ...