This example would create a new table called current_inventory based on column definitions from both the products and categories tables.Īgain, only the records that met the conditions of the SELECT statement would be populated into the new current_inventory table. ON products.category_id = categories.category_id PostgreSQL CREATE TABLE syntax CREATE TABLE tablename : The basic creation statement that signals that you wish to define a table. SELECT products.product_id, products.product_name, categories.category_name Next, let's look at a CREATE TABLE AS example that shows how to create a table by copying selected columns from multiple tables.įor example: CREATE TABLE current_inventory AS In other words, all records from the products table with a quantity greater than 0 would be inserted into the current_inventory table when it was created. To create a new table in a PostgreSQL database, one can use the UI or can also use the PostgreSQL CREATE TABLE statement. If there were records in the products table, then the new current_inventory table would be populated with the records returned by the SELECT statement. This example would create a new table called current_inventory that included all columns from the products table. Expand Schemas, public, Tables, right click on the Tables and click on Create, Table. For example, the following migration creates a flights table. Let's look at a PostgreSQL CREATE TABLE AS example that shows how to create a table by copying all columns from another table. The Laravel Schema facade provides database agnostic support for creating and manipulating.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |