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How do you float to two decimal places in Python?

In Python, to print 2 decimal places we will use str. format() with “{:. 2f}” as string and float as a number. Call print and it will print the float with 2 decimal places.

What is difference between float and decimal SQL Server?

Float stores an approximate value and decimal stores an exact value. In summary, exact values like money should use decimal, and approximate values like scientific measurements should use float. When multiplying a non integer and dividing by that same number, decimals lose precision while floats do not.

How do you truncate a column value in SQL?

DROP COLUMN columnName ; ALTER TABLE tableName DROP COLUMN columnName ; ALTER TABLE tableName DROP COLUMN columnName ; Example 1: Let us DROP the gender column from our DataFlair_info database.

How do you truncate a table?

The SQL TRUNCATE TABLE command is used to delete complete data from an existing table. You can also use DROP TABLE command to delete complete table but it would remove complete table structure form the database and you would need to re-create this table once again if you wish you store some data.

How do you truncate a row in SQL?

SQL Truncate is a data definition language (DDL) command. It removes all rows in a table. SQL Server stores data of a table in the pages. The truncate command deletes rows by deallocating the pages.

How do I truncate a column in MySQL?

The TRUNCATE statement in MySQL will delete only one table at a time….We can also use the below SQL query that generates several TRUNCATE TABLE commands at once using the table names in our database:

  1. SELECT Concat(‘TRUNCATE TABLE ‘, TABLE_NAME)
  2. FROM INFORMATION_SCHEMA. TABLES.
  3. WHERE table_schema = ‘database_name’;

What does truncate table do MySQL?

The TRUNCATE TABLE statement is used to remove all records from a table in MySQL. It performs the same function as a DELETE statement without a WHERE clause.