Managing Databases with Oracle Which statement about sequences is not true? Sequences are most often used to provide values for surrogate keys. NextVal and CurrVal are both sequence methods. A sequence is an object that generates a sequential series of unique numbers. Sequences guarantee valid surrogate key values. Sequences are most often used to provide values for surrogate keys. NextVal and CurrVal are both sequence methods. A sequence is an object that generates a sequential series of unique numbers. Sequences guarantee valid surrogate key values. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle What type of failure occurs when Oracle fails due to an operating system or computer hardware failure? Application failure Media Failure Instance Failure Rollback failure Application failure Media Failure Instance Failure Rollback failure ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is not true about indexes? Indexes are created with the ALTER TABLE command. Indexes are created to enforce uniqueness on columns. Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes. Indexes are created to enable fast retrieval by column values. Indexes are created with the ALTER TABLE command. Indexes are created to enforce uniqueness on columns. Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes. Indexes are created to enable fast retrieval by column values. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle When using SQL*Plus, Oracle commands, column names, table names and all other database elements: are case insensitive. are case sensitive. must always be in lower case. must always be in upper case. are case insensitive. are case sensitive. must always be in lower case. must always be in upper case. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle The semicolon terminates a SQL statement (and executes it). True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle You can check on the status of tables with the DESCRIBE or DESC command. False True False True ANSWER DOWNLOAD EXAMIANS APP
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