What is TRUNCATE function in MySQL?

MySQL TRUNCATE() Function The TRUNCATE() function truncates a number to the specified number of decimal places. Note: See also the FLOOR(), CEIL(), CEILING(), and ROUND() functions.

How do I TRUNCATE a specific column in MySQL?

The TRUNCATE statement in MySQL removes the complete data without removing its structure. It is a part of DDL or data definition language command….The below example shows how to truncate multiple tables in MySQL:

1. TRUNCATE TABLE table_name1;
2. TRUNCATE TABLE table_name2;
3. TRUNCATE TABLE table_name3;

How do I TRUNCATE a MySQL database?

Use the following procedure to perform the truncate table operation using the MySQL CLI:

1. Log in to your hosting account using SSH: mysql -u [username] -p [database_name) For example: mysql -u johndoe -p data_mysite.
2. Enter your password.
3. Execute: truncate table [table_name]

How do I TRUNCATE a view in MySQL?

Here is the basic syntax of the TRUNCATE TABLE statement:

1. TRUNCATE [TABLE] table_name;
2. CREATE TABLE books ( id INT AUTO_INCREMENT PRIMARY KEY, title VARCHAR(255) NOT NULL ) ENGINE=INNODB;
3. CALL load_book_data(10000);
4. SELECT * FROM books;
5. TRUNCATE TABLE books;

How do I TRUNCATE a SQL record?

To remove all data from an existing table, use the SQL TRUNCATE TABLE order. You can also use the DROP TABLE command to delete an entire table. But Truncate will remove the entire table structure from the database, and you will need to recreate the table if you want to store any data.

How do I TRUNCATE a value in SQL?

Syntax

1. If this value is positive, that many of the least significant digits (to the right of the decimal point) are truncated: truncate(123.456,2) returns 123.450 .
2. If this value is negative, that many of the least significant digits to the left of the decimal point are truncated: truncate(123.456,-1) returns 120.000 .

How do I truncate a specific column in SQL?

Executing the truncate command deletes all the data stored in the table or database….Some of the Restrictions on Alter table are as follows:

1. By using an alter table, we can’t change the name of the table.
2. We can’t modify the names of the columns.
3. We can’t alter a column already containing data.

How do I TRUNCATE a database?

Just follow these steps: 1) change active database. 2) run the script. 3) copy the results 4) paste the results back into the editor 5) execute the results. All tables in the active database are now truncated.

How do I truncate a row in SQL?

How do I cut to 2 decimal places in SQL?

A) Using TRUNCATE function with a positive number of decimal places. In this example, the TRUNCATE() function truncated a number down to two decimal places.

How do I TRUNCATE a row in SQL?

How do I TRUNCATE a row?

TRUNCATE TABLE removes all rows from a table, but the table structure and its columns, constraints, indexes, and so on remain. To remove the table definition in addition to its data, use the DROP TABLE statement.

How do I limit decimal places in SQL query?

SQL Server ROUND() Function The ROUND() function rounds a number to a specified number of decimal places. Tip: Also look at the FLOOR() and CEILING() functions.

How do I truncate a column value in SQL?

We use the Truncate command to delete the data stored in the table. The working of truncate command is similar to the working of Delete command without a where clause.

How do you TRUNCATE in SQL?