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19.5.5 Relational Tables

You can use MySQL Shell to manipulate not just JSON documents, but also relational tables.

In MySQL, each relational table is associated with a particular storage engine. The examples in this section use InnoDB tables in the world_x database.

Confirm the Schema

To show the value that is assigned to the schema variable, type db.

mysql-py> db

If the schema value is not the Schema:world_x database, then set the db variable as follows:

mysql-py> \use world_x

Show All Tables

To display all relational tables in the world_x database, use the get_tables() method on the schema object.

mysql-py> db.get_tables()
{
    "city": <Table:city>,
    "country": <Table:country>,
    "countrylanguage": <Table:countrylanguage>
}

Basic Table Operations

Basic operations scoped by tables include:

Operation form Description
db.name.insert() The insert() method inserts one or more records into the named table.
db.name.select() The select() method returns some or all records in the named table.
db.name.update() The update() method updates records in the named table.
db.name.delete() The delete() method deletes one or more records from the named table.

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