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How to strip all non-alphabetic characters from string in SQL Server?

...ex(@KeepValues, @Temp), 1, '') Return @Temp End Call it like this: Select dbo.RemoveNonAlphaCharacters('abc1234def5678ghi90jkl') Once you understand the code, you should see that it is relatively simple to change it to remove other characters, too. You could even make this dynamic enough ...
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What is the difference between char array and char pointer in C?

... char* and char[] are different types, but it's not immediately apparent in all cases. This is because arrays decay into pointers, meaning that if an expression of type char[] is provided where one of type char* is expected, t...
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How to delete from select in MySQL?

... SELECT (sub)queries return result sets. So you need to use IN, not = in your WHERE clause. Additionally, as shown in this answer you cannot modify the same table from a subquery within the same query. However, you can either...
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)

...irm this - I just updated a query with 4 joins on a 168,000 row database. Selecting just the first 100 rows with a SQL_CALC_FOUND_ROWS took over 20 seconds; using a separate COUNT(*) query took under 5 seconds (for both count + results queries). – Sam Dufel Ju...
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Calculate a Running Total in SQL Server

... somewhat limited. Oracle (and ANSI-SQL) allow you to do things like: SELECT somedate, somevalue, SUM(somevalue) OVER(ORDER BY somedate ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS RunningTotal FROM Table SQL Server gives you no clean solution to this problem. My ...
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ng-repeat :filter by single field

... Be careful with angular filter. If you want select specific value in field, you can't use filter. Example: javascript app.controller('FooCtrl', function($scope) { $scope.products = [ { id: 1, name: 'test', color: 'lightblue' }, { id: 2, name: 'bob',...
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How to find memory leak in a C++ code/project?

..., you should use a delete so that you free the same memory you allocated: char* str = new char [30]; // Allocate 30 bytes to house a string. delete [] str; // Clear those 30 bytes and make str point nowhere. 2 Reallocate memory only if you've deleted. In the code below, str acquires a new addre...
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./

...al letters represent the negation of their lowercase counterparts. \W will select all non "word" characters equivalent to [^a-zA-Z0-9_] \S will select all non "whitespace" characters equivalent to [ \t\n\r\f\v] _ will select "_" because we negate it when using the \W and need to add it back in ...
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How to round an average to 2 decimal places in PostgreSQL?

... round that takes a precision is only available for numeric. regress=> SELECT round( float8 '3.1415927', 2 ); ERROR: function round(double precision, integer) does not exist regress=> \df *round* List of functions Schema | Name | Result data type | Argument...
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Objective-C : BOOL vs bool

...mp; __LP64__) || TARGET_OS_WATCH typedef bool BOOL; #else typedef signed char BOOL; // BOOL is explicitly signed so @encode(BOOL) == "c" rather than "C" // even if -funsigned-char is used. #endif #define YES ((BOOL)1) #define NO ((BOOL)0) So, yes, you can assume that BOOL is a char. You can ...