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When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies
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137
When to use Pre-Order, In-Order, and Post-Order Traversal Strategy
Before you can understand u...
How to create a hex dump of file containing only the hex characters without spaces in bash?
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Giacomo1968
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answered Apr 10 '10 at 20:27
mark4omark4o
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Right query to get the current number of connections in a PostgreSQL DB
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233
Those two requires aren't equivalent. The equivalent version of the first one would be:
SELECT...
How to catch SQLServer timeout exceptions
...ql = new SqlConnection(@"Network Library=DBMSSOCN;Data Source=YourServer,1433;Initial Catalog=YourDB;Integrated Security=SSPI;");
sql.Open();
SqlCommand cmd = sql.CreateCommand();
cmd.CommandText = "DECLARE @i int WHILE EXISTS (SELECT 1 from sysobjects) BEGIN SELECT @i = 1 END";
cmd...
How to rollback just one step using rake db:migrate
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361
For starters
rake db:rollback will get you back one step
then
rake db:rollback STEP=n
Wil...
Check if a method exists
...respondsToSelector:@selector(methodName:withEtc:)]) {
[obj methodName:123 withEtc:456];
}
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How to 'bulk update' with Django?
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edited Apr 21 at 14:13
Flimm
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answered...
How to determine function name from inside a function
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238
You can use ${FUNCNAME[0]} in bash to get the function name.
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Where did the name `atoi` come from?
...rce on it... but in this listing of man pages from Third Edition Unix (1973) collected by Dennis Ritchie himself, it does contain the line:
atoi(III): convert ASCII to integer
In fact, even the first edition Unix (ca 1971) man pages list atoi as meaning Ascii to Integer.
So even if there is...
Why use Dijkstra's Algorithm if Breadth First Search (BFS) can do the same thing faster?
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ArkkuArkku
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