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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
ON DELETE ON UPDATE
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Internal relationships Documentation
Column Internal relation An internal relation is not necessary when a corresponding FOREIGN KEY relation exists.
id
respondent_name
respondent_email
answers
cat1_raw
cat2_raw
cat3_raw
cat4_raw
cat1_pct
cat2_pct
cat3_pct
cat4_pct
total_raw
total_pct
created_at