update set mysql

1-- Set New Employee Password 
2UPDATE employee
3SET employee.password = '1234'
4WHERE employee.email = 'emp@gmail.com';

1UPDATE tableName SET anAttribute = 'Something' WHERE anOtherAttribute = 'SomethingElse'
2
3//All 'SomethingElse' values will become 'Something'

1-- Things in brackets are optional
2-- IGNORE modifier updates rows even if errors occur (ie: the rows that cause errors are simply not updated)
3UPDATE [IGNORE] table_name 
4SET 
5    column_name1 = expr1,
6    column_name2 = expr2,
7    ...
8[WHERE 
9    condition]; -- WHERE tells us which rows to update based on said condition

1The UPDATE statement updates data in a table. It allows you to change the values in one or more columns of a single row or multiple rows.
2
3The following illustrates the basic syntax of the UPDATE statement:
4
5UPDATE [LOW_PRIORITY] [IGNORE] table_name 
6SET 
7    column_name1 = expr1,
8    column_name2 = expr2,
9    ...
10[WHERE
11    condition];
12In this syntax:
13
14First, specify the name of the table that you want to update data after the UPDATE keyword.
15Second, specify which column you want to update and the new value in the SET clause. To update values in multiple columns, you use a list of comma-separated assignments by supplying a value in each column’s assignment in the form of a literal value, an expression, or a subquery.
16Third, specify which rows to be updated using a condition in the WHERE clause. The WHERE clause is optional. If you omit it, the UPDATE statement will modify all rows in the table.

1UPDATE table_name SET field1 = new-value1, field2 = new-value2
2[WHERE Clause]
3