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How do I check if an index exists on a table field in MySQL?
...ame) full_path_schema, y.name index_name
FROM information_schema.INNODB_SYS_TABLES as x
JOIN information_schema.INNODB_SYS_INDEXES as y on x.TABLE_ID = y.TABLE_ID
WHERE x.name = 'your_schema'
and y.name = 'your_column') d on concat(a.table_schema, '/', a.table_name, '/', a.column_name) ...
How often does python flush to a file?
...
For file operations, Python uses the operating system's default buffering unless you configure it do otherwise. You can specify a buffer size, unbuffered, or line buffered.
For example, the open function takes a buffer size argument.
http://docs.python.org/library/func...
What is the equivalent of bigint in C#?
...r how much they look alike. Part of the reason is that SQL will frequently convert Int/BigInt to Numeric as part of the normal processing. So when it goes to OLE or .NET the required conversion is NUMERIC to INT.
We don't often notice since the printed value looks the same.
...
Drop all tables whose names begin with a certain string
... TableName,
so.object_id AS TableID,
0 AS Ordinal
FROM sys.objects AS so
WHERE so.type = 'U'
AND so.is_ms_Shipped = 0
AND OBJECT_NAME(so.object_id)
LIKE 'MyPrefix%'
UNION ALL
SELECT OBJECT_SCHEMA_NAME(so.object_id) AS SchemaName,
OBJEC...
How to re-raise an exception in nested try/except blocks?
...ument form of raise:
try:
something()
except SomeError:
t, v, tb = sys.exc_info()
try:
plan_B()
except AlsoFailsError:
raise t, v, tb
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...
Convert base64 string to ArrayBuffer
I need to convert a base64 encode string into an ArrayBuffer.
The base64 strings are user input, they will be copy and pasted from an email, so they're not there when the page is loaded.
I would like to do this in javascript without making an ajax call to the server if possible.
...
In Python, how do I convert all of the items in a list to floats?
...
float(item) do the right thing: it converts its argument to float and and return it, but it doesn't change argument in-place. A simple fix for your code is:
new_list = []
for item in list:
new_list.append(float(item))
The same code can written shorter u...
multiprocessing: sharing a large read-only object between processes?
...y.
The child parts are pleasant to write because each child simply reads sys.stdin.
The parent has a little bit of fancy footwork in spawning all the children and retaining the pipes properly, but it's not too bad.
Fan-in is the opposite structure. A number of independently running processes ...
Convert a RGB Color Value to a Hexadecimal String
... 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix...
Why cannot cast Integer to String in java?
...jB or (Object) objA will work.
Hence as others have mentioned already, to convert an integer to string use:
String.valueOf(integer), or Integer.toString(integer) for primitive,
or
Integer.toString() for the object.
s...