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What are the uses for Cross Join?
...o use a cross join to create a crosstab report. I found it in Joe Celko's SQL For Smarties, and have used it several times. It does take a little setup, but has been worth the time invested.
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How to get the sizes of the tables of a MySQL database?
I can run this query to get the sizes of all tables in a MySQL database:
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MySQL offset infinite rows
...e, but is offset by 5 from the start of the table. As far as I can tell, MySQL's LIMIT requires a limit as well as an offset. Is there any way to do this?
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Is it possible to break a long line to multiple lines in Python [duplicate]
...JOIN". In the example above, just use multi-line strings with ''' or """, SQL won't mind the CR/LF's.
– dsz
Jan 6 at 23:16
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...为什么在VC++2012下编译你会得到一个警告：“arning C4200: 使用了非标准扩展 : 结构/联合中的零大小数组”。
那么为什么gcc可以通过而连一个警告都没有？那是因为gcc 为了预先支持C99的这种玩法，所以，让“零长度数组”这种玩...
Best way to convert text files between character sets?
...set had indeed changed. Unfortunately, when I went to load the file into MySQL, it had a different number of columns than what it previously had before running the vim command. Wonder if it would be possible to just open the file, convert the encoding, and save/close the file while leaving all other...
MySQL: #126 - Incorrect key file for table
I got the following error from a MySQL query.
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Import CSV to mysql table
What is the best/fastest way to upload a csv file into a mysql table? I would like for the first row of data be used as the column names.
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Setting Django up to use MySQL
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MySQL support is simple to add. In your DATABASES dictionary, you will have an entry like this:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'DB_NAME',
'USER': 'DB_USER'...
How do I read CSV data into a record array in NumPy?
... potentially different types. You can think of it like a spreadsheet or
SQL table...
I would also recommend genfromtxt. However, since the question asks for a record array, as opposed to a normal array, the dtype=None parameter needs to be added to the genfromtxt call:
Given an input file, m...