Tell us what is an Integrity Constrains?
Submitted by: AdministratorSpecial requirements for table data:
1) allow NULL value
2) uniqueness of value
3) primary key
4) foreign key
5) special value size/text/length etc requirements
All information is stored in Data Dictionary.
Submitted by: Administrator
1) allow NULL value
2) uniqueness of value
3) primary key
4) foreign key
5) special value size/text/length etc requirements
All information is stored in Data Dictionary.
Submitted by: Administrator
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