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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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+ Add constraint
Internal relationships Documentation
Column Internal relation An internal relation is not necessary when a corresponding FOREIGN KEY relation exists.
pay_id
stud_id
stud_name
units
sem
year
course
balance
total
misc
others
ds1
lab
cancel
deducted
ds2
ds3
ds4
ds5
ds6
printed
per_unit
per_lab
total_unit
temp_balance
total_others
transfer_to
other_dis
promo
p_type
class_type
classtypebalance