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HashSet vs. List performance
...lly a collection in the .NET framework that switches between a list and hastable implementation depending on the number of items it contains: HybridDictionary.
– MgSam
Nov 1 '13 at 2:12
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What's quicker and better to determine if an array key exists in PHP?
...y search function, it only checks the presence of a variable in the symbol table and will not iterate over the array. array_key_exists on the other hand will iterate/search for the keys in the first dimension of the specified array.
– Rain
Apr 22 at 3:16
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Is it possible to Pivot data using LINQ?
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Group your data on month, and then project it into a new datatable with columns for each month. The new table would be your pivot table.
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MySQL's now() +1 day
...and `date`. AFAIR these may be reserved words
my version is:
INSERT INTO `table` ( `data` , `date` ) VALUES('".$date."',NOW()+INTERVAL 1 DAY);
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How to update only one field using Entity Framework?
Here's the table
16 Answers
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Return a value if no rows are found in Microsoft tSQL
...ut instead of returning a 1, how can I get it to return the value from the table?
– Michael
Aug 10 '16 at 13:34
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Parsing a comma-delimited std::string [duplicate]
...der: std::ctype<char> {
csv_reader(): std::ctype<char>(get_table()) {}
static std::ctype_base::mask const* get_table() {
static std::vector<std::ctype_base::mask> rc(table_size, std::ctype_base::mask());
rc[','] = std::ctype_base::space;
rc['\n'] = ...
How do I check if an array includes a value in JavaScript?
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Also relevant, the ES7 compatibility table (looks like chrome supports it now)
– styfle
Mar 11 '16 at 20:25
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How to change a nullable column to not nullable in a Rails migration?
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This causes problems when the table already has null values. See my answer
– Rick Smith
Aug 8 '14 at 20:27
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How to split text without spaces into list of words?
Input: "tableapplechairtablecupboard..." many words
16 Answers
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