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What is the means drop command in sql?

Anonymous

∙ 11y ago

Updated: 9/21/2023

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

Wiki User

∙ 11y ago

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Q: What is the means drop command in sql?

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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;

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.

What is the Select Top clause?

The Select Top clause is a programming command used with SQL or Structured Query Language. SQL is one of the main languages used in managing databases. The Select Top clause is used to specify the number of records to return from a query on the database.

Which SQL keyword is used to specify a condition that rows must meet to be included in the results of an SQL SELECT query?

select

What advantages of QBE compared to SQL?

QBE is an advantage over SQL as it is a visual technique allowing non-experts to do searches, as it is simple to understand.

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Related Questions

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.

What is drop command?

The "drop" command is typically used in programming or databases to remove a specific element or entity. For example, in SQL, you can use the "DROP TABLE" command to delete a table from a database. It is important to use this command carefully, as it permanently deletes the specified object.

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 do you delete a row without using delete command in SQL?

You drop the table and the row is deleted along with it.

What is the purpose of the AS command in SQL?

If you are in search of learning the purpose of the AS command in SQL, there are a few resources that are available to you. One resource that can explain the purpose of the AS command in SQL is Wikipedia.

What does the replace command perform in SQL?

The replace command function in SQL preforms comparisons on the collation of an input or inputs. It also replaces the text in a string of the SQL server.

How do you take delayed backup in SQL Server?

go to sql command prompt.

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.

Can you explain the potential risks and precautions associated with using the SQL command "DROP TABLE students" in a database management system?

Using the SQL command "DROP TABLE students" in a database management system can permanently delete the table and all its data, leading to loss of important information. To prevent accidental deletion, it is important to double-check the command before executing it and to regularly back up the database to avoid data loss.

Can you explain the process of how to properly drop a column in a database table using SQL?

To drop a column in a database table using SQL, you need to use the ALTER TABLE statement with the DROP COLUMN clause followed by the name of the column you want to remove. This action permanently deletes the specified column from the table, so make sure to back up your data before executing the command.

Can you use SQL to pull data from Oracle?

yes.... example: select *from employee; dml command in sql language

How many syntaxes has the INSERT SQL command?

One can find more information about how many syntaxes have the INSERT SQL command from the following websites: Stack Overflow, Microsoft and Wikipedia.

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