![]() ![]() To create it, enter the statement: CREATE TABLE comments ( To store the comments we must define a table. It is what happened when we entered the single command sqlite3 for the first time. Note: If no filename follows the command, sqlite3 automatically creates a temporary database. This will create a database file comment_section.db in the current working directory. ![]() Then, issue the command: sqlite3 comment_section.db If you are still in the sqlite3 program, quit it by entering. Most other database engines including MySQL use Static Typing. You can see the documentation for different Datatypes and Storage Classes provided in SQLite3. We can define the datatypes of the columns (attributes) as follows: Attribute We must also define a column that numbers the comments. Of the four of these, only website URL is optional. To post a comment, the user must enter the following details: Almost every website today has a comment section. We will learn to work with sqlite3 with our Comment Section database. They can be stored on various storage devices and can be transferred across different computers. SQLite databases are cross-platform portable files. Since the tutorial is a beginner level introduction, we will cover only the above mentioned commands. Note: SQLite understands many other standard commands, a list of which can be read here. Standard Commands can be classified into three groups:ĭata Definition Language: It provides the storage structure and methods to access data from the database system.ĭata Manipulation Language: It enables users to manipulate (add/modify/delete) data.ĭata Query Language: It enables users to retrieve required data from the database. Standard SQL commands are issued to operate on a database. Meta commands are issued to examine a database. Let us go through the standard commands in sqlite3. ![]()
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