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Foreign key constraints
Actions Constraint properties Column Creating a foreign key over a non-indexed column would automatically create an index on it. Alternatively, you can define an index below, before creating the foreign key. Foreign key constraint (INNODB)
Database Table Column
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ON DELETE ON UPDATE
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ON DELETE ON UPDATE
+ Add column
+ Add constraint
Internal relationships Documentation
Column Internal relation An internal relation is not necessary when a corresponding FOREIGN KEY relation exists.
id
batch_id
log_date
day_number
height_cm
ph
ec_ppm
temperature_c
humidity_percent
light_hours
water_ml
nutrients
notes
created_at