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Is having an 'OR' in an INNER JOIN condition a bad idea?
...is not smart enough to see it in the query you wrote (though they are logically equivalent).
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Difference between partition key, composite key and clustering key in Cassandra?
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In a situation of COMPOSITE primary key, the "first part" of the key is called PARTITION KEY (in this example key_part_one is the partition key) and the second part of the key is the CLUSTERING KEY (in this example key_part_two)
Please note that the both partition and clustering key can be made b...
How can I check MySQL engine type for a specific table?
... database contains several tables using different storage engines
(specifically myisam and innodb). How can I find out which tables are
using which engine?
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“rm -rf” equivalent for Windows?
...MDIR [/S] [/Q] [drive:]path
RD [/S] [/Q] [drive:]path
/S Removes all directories and files in the specified directory in addition to the directory itself. Used to remove a directory tree.
/Q Quiet mode, do not ask if ok to remove a directory tree with /S
If you are using PowerShell ...
Best practices/guidance for maintaining assembly version numbers
...T assembly. The Product version is the simplest, as this seems would normally be dictated by business. Then, the file version seems to be for versioning between deployments, where the actual assembly version is only used when shipping.
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How do I capitalize first letter of first name and last name in C#?
... One thing to note here is that it doesn't work if the string is all capitals. It thinks that all caps is an acronym.
– Mike Roosa
Sep 16 '08 at 14:55
9
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Cannot truncate table because it is being referenced by a FOREIGN KEY constraint?
...rrect; you cannot truncate a table which has an FK constraint on it.
Typically my process for this is:
Drop the constraints
Trunc the table
Recreate the constraints.
(All in a transaction, of course.)
Of course, this only applies if the child has already been truncated. Otherwise I go a differ...
moveCamera with CameraUpdateFactory.newLatLngBounds crashes
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You can use simple newLatLngBounds method in OnCameraChangeListener. All will be working perfectly and you don't need to calculate screen size. This event occurs after map size calculation (as I understand).
Example:
map.setOnCameraChangeListener(new OnCameraChangeListener() {
@Override...
Type List vs type ArrayList in Java [duplicate]
...tations of the List interface can be swapped. It seems that (1) is typically used in an application regardless of need (myself I always use this).
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Fetch the row which has the Max value for a column
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This will retrieve all rows for which the my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows.
select userid,
my_date,
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