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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
... described in the official Mysql Documentation.
If your script needs to be informed, if some records have not been added (due to key violations) you have to call mysql_info() and parse it for the "Duplicates" value.
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汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...件（CRF），不需要则ENTER
50162 + 403867 Bytes symbol space free
0 Warning Errors ←警告错误，表示编译器对某些语句不理解，通常是输入错误。
0 Severe Errors ←严重错误，会造成程序无法执行，通常是语法结构错误。
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What’s the best RESTful method to return total number of items in an object?
...uding in the response also the total number of records, and other relevant info, like the page size, the page number/offset, etc.
The StackOverflow API is a good example of that same design. Here's the documentation for the Users method - https://api.stackexchange.com/docs/users
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How to import other Python files?
...odule A.py, you used the syntax import package_name.module_name.
For more info on packages and modules, consult this link.
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How to move columns in a MySQL table?
...ou need to include those as well. Consult the docs on ALTER TABLE for more info.
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Django: Why do some model fields clash with each other?
...e values
for the attributes (including
related_name) each time.
More info here.
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Using Sinatra for larger projects via multiple files
...als
def spoof_request(uri,env_modifications={})
call(env.merge("PATH_INFO" => uri).merge(env_modifications)).last.join
end
def partial( page, variables={} )
haml page, {layout:false}, variables
end
end
helpers/nicebytes.rb
# encoding: utf-8
module NiceBytes
K = 2.0**10
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
... but here primary key relating to multiple records (i.e. Table A have book info and Table B have multiple publishers of one book).
Many to Many (M-M): Many to many includes two dimensions, explained fully as below with sample.
-- This table will hold our phone calls.
CREATE TABLE dbo.PhoneCalls
(
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What is the exact problem with multiple inheritance?
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This answer has some wrong info about Guido and Python, since Python supports MI. "I decided that as long as I was going to support inheritance, I might as well support a simple-minded version of multiple inheritance." — Guido van Rossum python-histo...
is node.js' console.log asynchronous?
...locking while stderr is blocking:
$ node script.js 2> error.log | tee info.log
In daily use, the blocking/non-blocking dichotomy is not something you should worry about unless you > log huge amounts of data.
Hope it helps
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