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MySQL root password change

... > UPDATE mysql.user SET authentication_string=PASSWORD('MyNewPass') WHERE user='root'; >FLUSH PRIVILEGES; In MySQL version 5.7.x there is no more password field in the mysql table. It was replaced with authentication_string. – Robert Antho...
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How to drop SQL default constraint without knowing its name?

... drop the constraint and dynamically execute it. declare @schema_name nvarchar(256) declare @table_name nvarchar(256) declare @col_name nvarchar(256) declare @Command nvarchar(1000) set @schema_name = N'MySchema' set @table_name = N'Department' set @col_name = N'ModifiedDate' select @Command = '...
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Are nested HTML comments possible?

...ut delving into the SGML that underlies it)) have come to believe that the string <!-- begins a comment, and the string --> ends a comment. Actually, <! and > delimit an SGML declaration within your HTML document, such as the DOCTYPE declaration we've all seen at the top of our pages. W...
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Fastest way to reset every value of std::vector to 0

...ATIONS = 100000; const size_t TEST_ARRAY_SIZE = 10000; int main(int argc, char** argv) { std::vector<int> v(TEST_ARRAY_SIZE, 0); for(size_t i = 0; i < TEST_ITERATIONS; ++i) { #if TEST_METHOD == 1 memset(&v[0], 0, v.size() * sizeof v[0]); #elif TEST_METHOD == 2 ...
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jQuery removeClass wildcard

...ot, because the removeClass function will strip whitespace from your class string for you via classes = ( value || "" ).match( rnotwhite ) || []; – eephillip Jan 7 '15 at 22:11 ...
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Pretty printing JSON from Jackson 2.2's ObjectMapper

... of org.fasterxml.jackson.databind.ObjectMapper and would like to get a String with pretty JSON. All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2. Even though I don't believe t...
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Laravel Redirect Back with() Message

... For 5.4, withErrors('some error') - so needs to be a string instead of array. – senty May 17 '17 at 6:18  |  show 4 more...
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Creating an empty file in C#

...r wrapping it in a helper method, e.g. public static void CreateEmptyFile(string filename) { File.Create(filename).Dispose(); } Note that calling Dispose directly instead of using a using statement doesn't really make much difference here as far as I can tell - the only way it could make a di...
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How to split a string in Java

I have a string, "004-034556" , that I want to split into two strings: 35 Answers 35 ...
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What is the difference between square brackets and parentheses in a regex?

...rts that the subpattern in between these anchors are the entire match. The string will only match if the subpattern matches the entirety of it, not just a section. () denotes a capturing group. 7|8|9 denotes matching either of 7, 8, or 9. It does this with alternations, which is what the pipe operat...