Math, asked by rehannadeem2007, 1 year ago

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?​

Answers

Answered by AkHAPPINESS
0

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 spacelover123
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

Similar questions