CMPTR
3rd Edition
ISBN: 9781337681872
Author: PINARD
Publisher: Cengage
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- How is adding a NOT NULL constraint to an existing table different from adding other types of constraints?arrow_forwardWhen part of the data in a table depends on a field in the table that isn’t the table’s primary key, it’s known as: transitive dependency partial dependency psychological dependency a foreign keyarrow_forwardThe CUSTOMER table contains a foreign key, REP_NUM, that must match the primary key of the REP table. What type of update(s) to the CUSTOMER table would violate the foreign key constraint?arrow_forward
- What guidelines should you follow when naming tables and columns in Oracle 12c?arrow_forwardFor each table, identify the primary key and the foreign key(s). If a table does not have a foreign key, write None. FIGURE P3.17 THE CH03_TRANSCO DATABASE TABLESarrow_forwardUsing tables named T1 and T2, write a query example for each of the three join types you described in Question 2. Assume that T1 and T2 share a common column named Cl.arrow_forward
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