course hero which of the following commands changes the value in a column?

by Madisyn Kulas DDS 5 min read

Which is used to change values of columns?

We can use ALTER TABLE ALTER COLUMN statement to change the datatype of the column.Sep 22, 2021

Which of the following commands changes the name of the table?

ALTER TABLE table_name RENAME TO new_table_name; Columns can be also be given new name with the use of ALTER TABLE.Mar 22, 2021

When defining columns for a table which of the following symbols is used to separate the column names in the column list?

If more than one column is listed, column names must be separated by commas.

Which of the following commands is used to remove rows from a table?

The drop table command is used to delete a table and all rows in the table. To delete an entire table including all of its rows, issue the drop table command followed by the tablename.

What is the ALTER TABLE query used for?

The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.

Can we change the table name in SQL?

Any database user can easily change the name by using the RENAME TABLE and ALTER TABLE statement in Structured Query Language. The RENAME TABLE and ALTER TABLE syntax help in changing the name of the table.

When defining columns for a table in the Create Table command the column list must be enclosed in which of the following symbols quizlet?

The column list must be enclosed in parentheses ( ). Default values cannot be assigned to all columns in a table. A column name can consist of up to 225 characters.

Which of the following commands removes all data from a table but leaves the table's structure intact?

TRUNCATE TABLELogically, TRUNCATE TABLE is similar to the DELETE statement with no WHERE clause. The TRUNCATE TABLE statement removes all the rows from a table, but the table structure and its columns, constraints, indexes, and so on remain intact.

Which of the following commands can be used to make structural changes to an existing table?

Which of the following commands can be used to make structural changes to an existing table? The ALTER TABLE name can be used to rename a table.

Which command is used to remove all values from a table?

truncate commandThe truncate command removes all rows of a table.Jul 8, 2019

Which one of the following command is used for removing?

rm command is used for removing files.Aug 16, 2018

Which of the following commands is used to delete the data from the database?

Solution. Drop database database_name command is used to delete a database.

QUESTION 2

To delete an entire table, use the ____ command and then re-create the table.

QUESTION 4

When a script file contains more than one command, each command must end with a (n) ____.

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