every amount change of the user is recorded in this table. website users about 100W, now the table is too big, thought of sub-table, how to divide it? Table structure! user id is a 32-bit guid ...
to query the data after horizontal split, suppose the data of a business is split horizontally, and the monthly records are stored in a table. The data of each table is about 1000w. There are already more than 20 tables, such as table_201606,.,table_201...
problem description there are two methods, the first is to delay operation, and the second is to use slot,. What are the principles of these two methods respectively? And why did this error occur, and what is the reason for source code analysis? Thank...
the vue project I built through vue-cli3 selected the module that supports ts, and then wrote a public js file today. The error report is not declared when it is introduced with import in main.js, but it can be used. The error message is as follows: 21...
I will report an error when I use decode ...
now I have a telegram account, and I have joined many channels channel . the demand is like this: I want to use the program to automatically get all the basic information that has joined the channel, such as the name of the channel, the sharing lin...
problem: because you want to introduce pictures directly into the html file through the img tag, html-withimg-loader is configured in webpack. But in this way, a similar in the html file cannot be parsed! ...