guys i have only 80 pts left. pls answer this question
Q.Can you have a table without a primary key. What is the default data type for primary key?
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Hello..
Here's your answer :--
No. Every table should have some column (or set of columns) that uniquely identifies one and only one row. ... It's true, without a primary key (or some unique key), you don't have an insertion anomaly if you go to insert the same data multiple times
SQL CREATE TABLE with PRIMARY KEY and UNIQUE CONSTRAINT
Field Name Data Type NULL
cust_code char No
cust_name char No
cust_city char No
grade integer Yes
Hope it helps uh
Answered by
0
Answer:
No. Every table should have some column that uniquely identifies one and only one row. ... It's true, without a primary key , you don't have an insertion anomaly if you go to insert the same data multiple times.
Hope it helps. Pls mark as brainliest answer
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