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How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
...aster-slave replication from scratch:
At the master:
RESET MASTER;
FLUSH TABLES WITH READ LOCK;
SHOW MASTER STATUS;
And copy the values of the result of the last command somewhere.
Without closing the connection to the client (because it would release the read lock) issue the command to get a d...
How to create a printable Twitter-Bootstrap page
...
Bootstrap 3.2 update: (current release)
Current stable Bootstrap version is 3.2.0.
With version 3.2 visible-print deprecated, so you should use like this:
Class Browser Print
-------------------------------------------------
.visible-print-block ...
Database Structure for Tree Data Structure
... Considering a structure as in number one topic (organizational structured table (not employee structured) with ParentId referenced in the same table), I need to set who is the boss of a certain area. I will assign all the employees of that specific area directly to it. Where would you put the boss ...
Importance of varchar length in MySQL table
I have a MySQL table where rows are inserted dynamically. Because I can not be certain of the length of strings and do not want them cut off, I make them varchar(200) which is generally much bigger than I need. Is there a big performance hit in giving a varchar field much more length than necessar...
Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据 - 更多技术 - 清泛网 - ...
...这个方法不能恢复你的数据。my.ini的设置为 innodb_file_per_table = 1。
参考 http://blog.chinaunix.net/uid-24111901-id-2627876.html
1、找回表结构，如果表结构没有丢失直接到下一步
a、先创建一个数据库，这个数据库必须是没有表和任何操...
Count the number of occurrences of a string in a VARCHAR field?
I have a table like this:
7 Answers
7
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How to select date from datetime column?
...f operators in an indexed column is high. These are some test results on a table with 1,176,000 rows:
using datetime LIKE '2009-10-20%' => 2931ms
using datetime >= '2009-10-20 00:00:00' AND datetime <= '2009-10-20 23:59:59' => 168ms
When doing a second call over the same query the di...
MySQL ON DUPLICATE KEY - last insert id?
...on to that MySQL function.
From the MySQL documentation example:
If a table contains an AUTO_INCREMENT column and INSERT ... UPDATE inserts a row, the LAST_INSERT_ID() function returns the AUTO_INCREMENT value. If the statement updates a row instead, LAST_INSERT_ID() is not meaningful. However,...
Profiling Vim startup time
...ent directory with all required information. To get per-script information table similar to already present per-function one, use (after opening this file in vim):
" Open profile.log file in vim first
let timings=[]
g/^SCRIPT/call add(timings, [getline('.')[len('SCRIPT '):], ...
UITableView Cell selected Color?
I have created a custom UITableViewCell . The table view is showing data fine. What I am stuck in is when user touches cell of tableview, then I want to show the background color of the cell other than the default [blue color] values for highlighting the selection of cell.
I use this code but nothi...