Introduction to Database System A key: can only be one column. must always be composed of two or more columns. identifies a row. identifies a column. can only be one column. must always be composed of two or more columns. identifies a row. identifies a column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Sort key Update Index Delete Sort key Update Index Delete ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The main idea behind computer files is that it is convenient to store information together create them access them arrange them store information together create them access them arrange them ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database design may be based on existing data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The _____ command is used to allocates an extent for the table in SQL None of these MODIFY TABLE MODIFY ALLOCATES REDEFINE TABLE ALTER TABLE None of these MODIFY TABLE MODIFY ALLOCATES REDEFINE TABLE ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relational schema, each tuple is divided into fields called Queries Relations Domains All of the listed here Queries Relations Domains All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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