Database Structure Database Connection table

Source: Internet
Author: User

Database structure:


libraries, tables, indexes, fields, views, triggers, stored procedure database users


CRUD additions and deletions change


User Rights Management


Having: Re-filtering on the basis of statistics, the condition field allows the name of a statistic field that does not exist in the table

1. Database Connection Table

Left Join

Right Join


2. Database engine (System resources, data security, concurrency)





3. Database optimization

Index: Single index, combined index (index is space-occupying)

Sql:1, use with caution

Database Structure Database Connection table

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