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The DROP table command of SQL lets you drop a table from database . The database requires you to empty a table before you eliminate from the database. But there is a condition for dropping a table ; it must be an empty table.

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Which command is used to remove an index from the database in SQL?

It may depend on what flavor of SQL, but whenever you want to get rid of something, DROP is generally your friend. DROP INDEX <indexname>; is likely to be the command needed, with various options depending on, again, exactly what flavor of SQL you're talking about.


Which piece of information is available from examining the output of the command show ip interface brief?

From the output of the "show ip interface brief" command, you can see the IP address, interface status (up or down), protocol status (up or down), and the method for obtaining the address (manual or dynamic) for each interface on the device.


What command is used to change contents of one database using the contents of another database by linking them on a common key field?

The SQL command UPDATE can be used to change contents of one database using the contents of another database by joining them on a common key field. You would typically use a query with a join condition between the two tables based on the common key field to update the fields in the target table with values from the source table.


Sql command to retrive all data froma table?

The SQL command that can be used to retrieve all data from a table is the SELECT Ex: Let us say we have a table called employee_master which contains 3 columns emp_name, emp_number, date_of_joining you can retrieve all the data by using the below command SELECT * FROM employee_master or SELECT emp_name, emp_number, date_of_joining FROM employee_master


How can you retrieve data from database in drop down box?

You will need a server-side language (and, obviously, a database) to accomplish that. Here's a very simple example, using PHP and MySQL. ---- <?php // Connect to MySQL and select a database (if either one fails, stop the script) $connect = mysql_connect('username', 'password') or exit('Connection failed.'); $select = mysql_select_db('database') or exit('Database Selection failed.'); // Retrieve data from the database. $sql = "SELECT `name` FROM `fruits`"; $query = mysql_query($sql); if (!$query) { exit('The query failed.'); } // Create a drop-down box. echo "<input type='select'>"; // For each row returned, create an option element for it. while ($fruit = mysql_fetch_assoc($query)) { echo "<option>"; echo $fruit['name']; echo "</option>"; } // End the drop-down box. echo "</select>"; ?>

Related Questions

What is the means drop command in sql?

The DROP command allows you to delete things such as tables or indexes.


How can you train your dog to drop the ball on command?

To train your dog to drop the ball on command, you can use positive reinforcement. Start by teaching your dog to hold the ball in their mouth, then say the command "drop it" and offer a treat when they release the ball. Repeat this process consistently until your dog learns to drop the ball on command reliably.


How do you drop items RuneScape?

To drop items, you go to your inventory, right click on the item you want to drop, then use the drop command.


What is the difference between drop and truncate in dbms?

even though both these commands are related to the structure of the table...,we can regain the data when we use use drop command by use of rollback command but its not possible in the case of truncate command.


How can I train my dog to drop a ball on command?

To train your dog to drop a ball on command, start by teaching them the "drop it" cue. Hold a treat in one hand and the ball in the other. When your dog picks up the ball, say "drop it" and show them the treat. When they release the ball, reward them with the treat. Repeat this process until your dog consistently drops the ball when you say the command. Practice regularly to reinforce the behavior.


What is the means drop command?

The DROP table command of SQL lets you drop a table from database . The database requires you to empty a table before you eliminate from the database. But there is a condition for dropping a table ; it must be an empty table. syntax: 1st - delete from table-name; 2nd- drop table table-name;


How can I teach my dog to drop the ball?

To teach your dog to drop the ball, use positive reinforcement by offering a treat when they release the ball. Start by saying "drop" or a similar command as they hold the ball, then reward them when they let go. Repeat this process consistently until your dog learns to drop the ball on command.


How can I teach my dog to drop objects on command?

To teach your dog to drop objects on command, start by using a treat to encourage them to release the object voluntarily. Pair the command "drop it" with the action of dropping the object. Practice this consistently and reward your dog each time they comply. Gradually phase out the treats and continue practicing until your dog reliably responds to the command. Consistency and positive reinforcement are key to successful training.


Can you explain the process of how to drop an index in a database?

To drop an index in a database, you need to use a specific SQL command. First, you identify the name of the index you want to drop. Then, you use the DROP INDEX statement followed by the name of the index. This command removes the index from the database, making the associated data searchable without the index.


How can I teach my dog to drop a ball?

To teach your dog to drop a ball, start by using a treat to encourage them to release the ball from their mouth. Say a command like "drop it" as they do so, and reward them with the treat. Repeat this process consistently until your dog learns to drop the ball on command without needing a treat. Practice regularly to reinforce the behavior.


How can I effectively teach my dog to drop the ball during a game of fetch?

To effectively teach your dog to drop the ball during a game of fetch, you can use positive reinforcement by rewarding your dog with treats or praise when they release the ball. You can also use a command like "drop it" consistently and gently take the ball from their mouth if they don't drop it on their own. With patience and practice, your dog will learn to drop the ball on command.


What is the command to drop a navy salute?

The command is 'Ready, To!' in a verbal situation. When using the boatswain's pipe it is two short blasts. Often used when passing another ship to show respect.