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What does |= (ior) do in Python?
...ace+ operation between pairs of objects. In particular, between:
sets: a union operation
dicts: an update operation
counters: a union (of multisets) operation
numbers: a bitwise OR, binary operation
In most cases, it is related to the | operator. See examples below.
Sets
For example, the union o...
Search text in fields in every table of a MySQL database
I want to search in all fields from all tables of a MySQL database a given string, possibly using syntax as:
24 Answers
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What is the PostgreSQL equivalent for ISNULL()
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I suspect these commenters are MySQL users who didn't realize the question starts with, "In MS SQL Server, ..." MySQL has an ISNULL() function that takes a single argument and returns 0 or 1. T-SQL's version takes two arguments and behaves like COALESCE ...
How do I import CSV file into a MySQL table?
...unnormalized events-diary CSV from a client that I'm trying to load into a MySQL table so that I can refactor into a sane format. I created a table called 'CSVImport' that has one field for every column of the CSV file. The CSV contains 99 columns , so this was a hard enough task in itself:
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UnicodeEncodeError: 'latin-1' codec can't encode character
...his encoding allows any character to be used. You should also ideally tell MySQL you are using UTF-8 strings (by setting the database connection and the collation on string columns), so it can get case-insensitive comparison and sorting right.
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Remote Connections Mysql Ubuntu
For some reason, I've been unable to connect remotely to my MySQL server. I've tried everything and I'm still getting errors.
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你真的了解熊市有多么可怕吗？ - 创意 - 清泛网 - 专注C/C++及内核技术
...情，因为天天都是跌。
每天出现的股评高手，说的都是如何杀跌换股，短线操作而不是持有。
每隔几周，都会出现新底，而且每次有人叫着抄底，接下来就继续地下跌，跌到最后没人说抄底为止。国家出台超过3个以上的利好...
对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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jiulongproxynew# make install
2、安装Apache，squid认证用户设置密码时使用apache的密码管理程序htpasswd
jiulongproxynew# cd /usr/ports/www/apache13
jiulongproxynew# make install
3、下载并安装squid
从http://www.squid-cache.org/Versions/v2/2.6/下载squid-2.6.STABLE1...
How to merge 2 List and removing duplicate values from it in C#
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Have you had a look at Enumerable.Union
This method excludes duplicates from the return set. This is different
behavior to the Concat
method, which returns all the elements
in the input sequences including
duplicates.
List<int> list1 = new List<int...
JOIN two SELECT statement results
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Use UNION:
SELECT ks, COUNT(*) AS '# Tasks' FROM Table GROUP BY ks
UNION
SELECT ks, COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks
Or UNION ALL if you want duplicates:
SELECT ks, COUNT(*) AS '# Tasks' FROM Ta...