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Update one MySQL table with values from another
...TE tobeupdated
INNER JOIN original ON (tobeupdated.value = original.value)
SET tobeupdated.id = original.id
That should do it, and really its doing exactly what yours is. However, I prefer 'JOIN' syntax for joins rather than multiple 'WHERE' conditions, I think its easier to read
As for running s...
MySQLDump one INSERT statement for each data row
... --create-options --disable-keys --extended-insert --lock-tables --quick --set-charset. It gives a fast dump operation and produces a dump file that can be reloaded into a MySQL server quickly.
Because the --opt option is enabled by default, you only specify its converse, the --skip-opt to turn off...
Java Garbage Collection Log messages
... use for the minor collection. PS stands for Parallel Scavenge.
The first set of numbers are the before/after sizes of the young generation and the second set are for the entire heap. (Diagnosing a Garbage Collection problem details the format)
The name indicates the generation and collector in que...
Difference between CC, gcc and g++?
...compile arbitrary C programs. (Although it is possible to write C in a subset that is also understood by C++, many C programs are not valid C++ programs). Similarly, the C compilers will accept C programs and will reject most C++ programs (because most C++ programs use constructs not available in ...
ssh “permissions are too open” error
... save any kind of file on the disk anymore.
I had to reboot OSX lion and reset the permissions on files and acls.
27 Answer...
Padding between ActionBar's home icon and title
Does anybody know how to set padding between the ActionBar's home icon and the title?
21 Answers
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WPF Blurry fonts issue- Solutions
...pecial interest to me was the link to the MSDN article "ClearType Registry Settings", which explains the possible user-side adjustments in the registry:
ClearType level: amount of subpixel hinting
Gamma level
Pixel structure: how the color stripes in a display-pixel are arranged
Text contrast leve...
SQLAlchemy: cascade delete
... the database, or should only it's reference to the parent be removed (ie. set parentid column to null, instead of deleting the row)
– Steven
Feb 8 '16 at 13:04
1
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What does 'require: false' in Gemfile mean?
...
What if you want to set require to false and the library name is different to the gem name as well?
– Peter-Jan Celis
Jan 4 '14 at 15:35
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What kind of virtual machine is BEAM (the Erlang VM)?
...n of the machine. The number of threads and on which cores they run can be set when the VM is started.
Erlang processes are implemented entirely by the Erlang VM and have no connection to either OS processes or OS threads. So even if you are running an Erlang system of over one million processes it...