PostgreSQL developers are obligated to correct fatal bugs.
They fix bugs in PostgreSQL
To facilitate data backup, data should be normalized.
You can use a different character set for each database in the database cluster
When the master instance fails, a read-only slave instance may be promoted to an updateable master instance.
Where only one index exists on a table, that index will always be utilized for a search.
DDL stands for Data Definition Language and refers to SQL commands that allow the definition of database objects, such as CREATE TABLE.
DML is an abbreviation of Data Manipulation Language, and refers to SQL commands that perform data manipulation such as SELECT or UPDATE.
DML is an abbreviation of Data Making Language, and refers to SQL commands that create data such as CREATE TABLE and INSERT.
Selling software for a fee that has been created by modifying the PostgreSQL source code carries no obligation to disclose the modified parts.
Source code obtained free of charge maybe modified and then distributed for a fee.
Easily maintain data by eliminating duplication of data.
To simplify data retrieval by simplifying data dependency.
Standardizing the structure of the table makes it easy to back up the data.
Improves performance by dividing up a large table and distributing it across multiple disks.
Improves performance by placing the table and index on separate disks.
Specifies the file name as the tablespace, and the table and index are created within that file space.
Specifies the directory name as the tablespace, and the table and index are created as a file within that directory.
The tablespace used by the table can only be specified when creating a new table with CREATE TABLE and cannot be modified after it is created.
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