SQL Create Table from Select Syntaxįollowing is the syntax of creating a table from the select statement. Tables may be created in the main database, the temp database, or in any attached database. The database in which the new table is created. A CREATE TABLE command specifies the following attributes of the new table: The name of the new table. It is important to note that when creating a table in this way, the new table will be populated with the records from the existing table (based on the SELECT Statement). The 'CREATE TABLE' command is used to create a new table in an SQLite database. The SQLite CREATE TABLE AS statement is used to create a table from an existing table by copying the existing table's columns. We can also create a table in SQLite with SELECT statement by using CREATE TABLE AS command. Create a SQLite database with DB Browser for SQLite Create a table in the database with DB Browser for SQLite. After that, there is a table-level constraint of UNIQUE, which is defined for columns name and phone together.If no value is provided for this column, the DEFAULT VALUE will be UNKNOWN. The third column named Phone which is having data type TEXT and cannot contain NULL values.It is important to note that when creating a table in this way, the new table will be populated with the records from the existing table (based on the SELECT Statement ). The second column named Name which is having data type TEXT and also can not contain a NULL value which is again row-level constraint. The SQLite CREATE TABLE AS statement is used to create a table from an existing table by copying the existing tables columns.The first column named Id having data type INTEGER and having row-level constraint PRIMARY KEY.If no value is provided for this column, the DEFAULT VALUE will be 0.In this example, we have created a table named contacts having 3 columns. The third column is called quantity which is an INTEGER datatype and can not contain NULL values.The second column is called product_name which is a VARCHAR datatype.It has been defined as the primary key and is set as an AUTOINCREMENT field. The first column is called product_id which is created as an INTEGER datatype.This SQLite CREATE TABLE example creates a table called products which has 3 columns and one primary key: Migration squashing is only available for the MySQL, PostgreSQL, and SQLite databases and utilizes the databases command-line client. ( product_id INTEGER PRIMARY KEY AUTOINCREMENT, Next, let's create a table that has a DEFAULT VALUE. The fourth column is called hire_date which is a DATE datatype and can contain NULL values.The third column is called first_name which is a VARCHAR datatype and can contain NULL values.The second column is called last_name which is a VARCHAR datatype and can not contain NULL values.It has been defined as the primary key and is set as an AUTOINCREMENT field which means that it is an autonumber field (starting at 1, and incrementing by 1, unless otherwise specified.) While more limited than full SQL implementations, SQLite supports the core features needed for most database operations: Creating and altering table schemas SQLite lets you create tables, define columns with data types, add and remove columns, create indexes. The first column is called employee which is created as an INTEGER datatype. SQLite uses a simplified SQL syntax that is optimized for embedded applications.This SQLite CREATE TABLE example creates a table called employees which has 4 columns and one primary key: ( employee_id INTEGER PRIMARY KEY AUTOINCREMENT, Let's look at a SQLite CREATE TABLE example.
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