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ORM (Object Relational Mappers) (SQL (NORMALIZATION (benefits (Duplicates…
ORM
(Object Relational Mappers)
SQL
SELECT
ORDER BY
WHERE
BETWEEN
LIMIT
RELATIONSHIPS
1:MANY
#
1:1
MANY:MANY
#
KEYS
FOREIGN
PRIMARY
NORMALIZATION
0th
organization
1st
rows same column
2nd
3rd
benefits
Duplicates
Modification
Simple
ERD
MAP
ORM
OOP
SQLAlchemy
engine
Step 1
declare
import
execute
Step 2
CONSTRUCT TABLE
