January 2005
Beginner to intermediate
928 pages
22h 14m
English
book
Understanding DB2®: Learning Visually with Examples
by Raul F. Chong, Clara Liu, Sylvia F. Qi, Dwaine R. Snow
Content preview from Understanding DB2®: Learning Visually with Examples
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Chapter 7
| A1: | C. Since no schema is explicitly specified, the schema will be the authorization ID for the connection. The authorization ID, also known as the connection ID, is the user ID used to connect to the database. Therefore, the table name will be foo.t1. |
| A2: | B. There is no object named IBMDEFAULTSPACE. When a database is created, DB2 creates the table spaces SYSCATSPACE, USERSPACE1, and TEMPSPACE1; the partition groups IBMCATGROUP, IBMTEMPGROUP, and IBMDEFAULTGROUP; and the buffer pool IBMDEFAULTBP. |
| A3: | C. An identity column ensures uniqueness, but only within a table. A sequence generates a unique value that is across the whole database and can therefore be used with multiple tables. |
| A4: | D. The statement alter table t1 activate not logged ... |
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