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When to use nil, blank, empty? [duplicate]
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Here I made this useful table with all the cases
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Saving results with headers in Sql Server Management Studio
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Try the Export Wizard. In this example I select a whole table, but you can just as easily specify a query:
(you can also specify a query here)
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How can I get the timezone name in JavaScript?
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@DanielCompton oh I didn't know about this table, thanks for correcting it again.
– CommonSenseCode
Sep 3 '18 at 7:34
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How do I find out my MySQL URL, host, port and username?
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I am getting "ERROR 1146 (42S02): Table 'performance_schema.session_variables' doesn't exist"
– Mark A
Apr 6 '17 at 19:08
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What's the difference between equal?, eql?, ===, and ==?
...programming languages, such as Ruby, provide a collection type called hash table. Hash tables are dictionary-like collections which store data in pairs, consisting of unique keys and their corresponding values. Under the hood, those keys are stored as hashcodes. Hash tables are commonly referred to ...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...a_State *L, int sz);
lua中定义的变量和函数存放在一个全局table中，索引值为LUA_GLOBALSINDEX ，table相关操作接口：
void (lua_gettable) (lua_State *L, int idx);
void (lua_getfield) (lua_State *L, int idx, const char *k);
void (lua_settable) (lua_State *L, int idx);...
How to change the blue highlight color of a UITableViewCell?
I'm wondering how to change the blue highlight/selection color of a UITableViewCell , any ideas?
11 Answers
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Setting element of array from Twig
...That will work only when keys are strings
What I did is recreate another table ( temp) from the initial table (t) and make the keys a string , for example :
{% for key , value in t%}
{% set temp= temp|merge({(key~'_'):value}) %}
{% endfor %}
t keys : 0 , 1 , 2 ..
temp keys : 0_, 1_ , 2_ ......
Nearest neighbors in high-dimensional data?
...set of points in a high-dimensional space into a set of bins, i.e., a hash table [1][3]. But unlike traditional hashes, a locality-sensitive hash places nearby points into the same bin.
LSH has some huge advantages. First, it is simple. You just compute the hash for all points in your database, the...
What is the difference between SQL, PL-SQL and T-SQL?
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Correction: SQL is a language to operate on tables for which SQL itself provides the definition. The SQL Standard avoids the words 'set' and 'relation' and their derivatives. SQL tables are not sets.
– onedaywhen
Nov 25 '11 at 12:...