How to use update command in SQL?

How UPDATE command is used in SQL?

The UPDATE command in SQL is used to modify or change the existing records in a table. If we want to update a particular value, we use the WHERE clause along with the UPDATE clause. If you do not use the WHERE clause, all the rows will be affected.

How do I use the UPDATE command?

UPDATE Syntax Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record(s) that should be updated. If you omit the WHERE clause, all records in the table will be updated!

How does UPDATE in SQL works?

The basic SQL UPDATE syntax comes down to using keyword UPDATE followed by the name of our object (table or table alias) and the SET column name equals to some values. The FROM clause will come into play when we do joins and we can also have a WHERE clause when we need to update only a portion of data in a table.

How do I UPDATE a row in MySQL?

MySQL UPDATE1First, specify the name of the table that you want to update data after the UPDATE keyword.2Second, specify which column you want to update and the new value in the SET clause. ... 3Third, specify which rows to be updated using a condition in the WHERE clause.MySQL UPDATE Statement - Updating Data In a Table