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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...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
... 得到easy_request_t中成员request_list_node的指针
(type *)( (char *)__mptr - offsetof(type,member) );}) // 指针减去 request_list_node成员在easy_request_t中的偏移就得到了easy_request_t的首地址
其中offsetof(type,member)是得到member这个这个...
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 = '...
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...
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
...
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
...
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...
Laravel Redirect Back with() Message
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For 5.4, withErrors('some error') - so needs to be a string instead of array.
– senty
May 17 '17 at 6:18
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show 4 more...
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...
How to split a string in Java
I have a string, "004-034556" , that I want to split into two strings:
35 Answers
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