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Oracle Online redo log files (online redo log fileAlmost all of the internal changes that occur in Oracle are recorded in the online redo log file, and Oracle uses these redo log groups to recover the database, so they are very important.The main

Thoroughly understand position, anchorPoint, and anchorpointIntroduction I believe that people who are new to CALayer will encounter the following problems:Why does the anchorPoint position move the layer?What is the position of CALayer?What is the

IntroductionBelieve that the first contact to Calayer people will encounter the following problems:Why does modifying anchorpoint move the layer's position?What is the point of Calayer's position?What is the relationship between Anchorpoint and

I believe that people who are new to calayer will encounter the following problems:Why does the anchorpoint position move the layer?What is the position of calayer?What is the relationship between anchorpoint and position? I have also been confused.

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Business 0 Impact! How to skillfully use MySQL traditional replication technology in online environmentThis article I will not describe how to deploy a MySQL replication environment or keepalived+ dual-host environment, because this kind of

Float:left|right; Automatic line wrapping can be arranged automatically, but clear is required to fit the float;Display:inline-block; There are times when you can replace float to achieve the same effect.position:absolute|relative; To cooperate with

With the rise of the industry, too many traditional enterprises have been or are about to embrace the. Online team building and training, is the first to solve the problem, but some can put the vector, what is the issue of the need to understand the

Page layout, or on the page to do some small effects often use display,position and float properties, if they do not know very well, it is easy to appear some inexplicable effect, a lesson from the experience of reading "CSS Mastery" after summing

backgroundproperty is one of the most common properties in CSS, and to implement a CSS cutout, you only need to use one property: Background-position. Background-position is the position used to control the background image of an element. The trick