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I have 4 tables
table 1 has 1 column named car
table 2 has 2 columns named car and name
table 3 has 3 columns car ,name, and group
table4 has 4 columns named car ,name,group, owner i want to likn k the coulmns in the tables so that car,name,group in table1,2and 3 are the same
Posted 17-Sep-12 23:07pm
Edited 17-Sep-12 23:10pm
Zoltán Zörgő at 18-Sep-12 5:10am
Good for you, and how can we help? This is no question.
shabari7 at 18-Sep-12 5:16am
try foreign key concept

1 solution

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Solution 1

you can use primary key and foreign key concept.
like keep car as primary key in table1 and give its reference to all three tables.
in same way for name and group in their respective tables.
it will help to remove data redundancy.
mrDivan at 18-Sep-12 6:25am
Thank you

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