Essential SQLAlchemy: First steps

Essential-SQLAlchemy-2nd.org

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+* Chapter 1: Schema and Types
+#+BEGIN_SRC python :results output
+  import sqlalchemy
+  print(sqlalchemy.__version__)
+#+END_SRC
+
+#+RESULTS:
+: 2.0.52
+
+
+#+BEGIN_SRC python :session ch1
+  from sqlalchemy import MetaData
+
+  metadata = MetaData()
+#+END_SRC
+
+
+#+BEGIN_SRC python :session ch1
+  from sqlalchemy import Table, Column, Integer, Numeric, String, ForeignKey
+
+  cookies = Table(
+      "cookies",
+      metadata,
+      Column("cookie_id", Integer(), primary_key=True),
+      Column("cookie_name", String(50), index=True),
+      Column("cookie_recipie_url", String(255)),
+      Column("cookie_sku", String(55)),
+      Column("quantity", Integer()),
+      Column("unit_cost", Numeric(12, 2)),
+  )
+#+END_SRC
+
+#+BEGIN_SRC python :session ch1
+  from datetime import datetime
+  from sqlalchemy import DateTime
+
+  users = Table(
+      "users",
+      metadata,
+      Column("user_id", Integer(), primary_key=True),
+      Column("username", String(15), nullable=False, unique=True),
+      Column("email_address", String(255), nullable=False),
+      Column("phone", String(20), nullable=False),
+      Column("password", String(25), nullable=False),
+      Column("created_on", DateTime(), default=datetime.now),
+      Column("updated_on", DateTime(), default=datetime.now, onupdate=datetime.now),
+  )
+#+END_SRC