`joining_date_time` DATETIME DEFAULT NULL Let us recreate the table using the following create table command. The execution of output of the above query statement is as shown below that shows the error saying that the table does not exist. Let us check the contents of the table by using the following query statement. Now, let us drop the table by using the drop command in SQL that clears the table contents as well as the table existence in our database.

Let us consider one example in which we have one existing table named educba_writers_demo that has the columns and the contents of the table that are as shown in the output of the below query statement. Note that drop command not only clears the table contents but also the structure of the table. But we will have to create the same table again using the CREATE table command in SQL. We can alternatively use the drop command to delete the whole table along with its contents and structure that completely vanishes the existence of that table in our database in the SQL. We can observe that the table named educba_identity2 has been cleared successfully and there is none of the record present in the table. Now to delete all the rows and clear the table named educba_identity2 using the truncate command, we can make the use of the following query statement. The table named educba_identity2 which contains 5 rows and has the structure and contents as shown in the output of the below query statement. This command is most often used to delete the selected rows present in the table. We can clear the contents of the table by using the delete command which is one of SQL command of the set of the data manipulation language commands that are available in SQL. We can observe that the table named educba_identity1 has been cleared successfully and there is none of the record present in the table. Let us once again check the contents of the table educba_identity1 and see whether the table is cleared using the following SQL command. Now to delete all the rows and clear the table named educba_identity1 using the truncate command, we can make the use of the following query statement. The table named educba_identity1 which contains 5 rows and has the structure and contents as shown in the output of the below query statement. The keyword TABLE needs to be used when using the TRUNCATE command.

In the above syntax, the name of the table is the table name of which we want to clear all the contents and records that exist in that table. Hadoop, Data Science, Statistics & others

Sql tabs list of all tables