Introduction to Database System Which command(s) is(are) used to redefine a column of the table in SQL ? ALTER TABLE all of the listed here MODIFY TABLE DEFINE TABLE ALTER TABLE all of the listed here MODIFY TABLE DEFINE TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not true of the traditional approach to information processing? There is common sharing of data among the various applications It is file-oriented Programs are dependent on the files All of these It is inflexible There is common sharing of data among the various applications It is file-oriented Programs are dependent on the files All of these It is inflexible ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key both (a) and (b) is made up a several pieces of information is a combination of each unique key uniquely identifies an item in a list None of these both (a) and (b) is made up a several pieces of information is a combination of each unique key uniquely identifies an item in a list None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation has cells that hold multi-value entries. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute is a(n): two dimensional table. row of a table. column of a table. key of a table. two dimensional table. row of a table. column of a table. key of a table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT UNIQUE All of these SELECT DISTINCT None of these SELECT DIFFERENT SELECT UNIQUE All of these SELECT DISTINCT None of these SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
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