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Editor to share with you how to write sql modification sentences, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to understand it!

The sql modification statement is a UPDATE statement.

SQL UPDATE statement

The UPDATE statement is used to update records that already exist in the table.

SQL UPDATE syntax

UPDATE table_nameSET column1=value1,column2=value2,...WHERE some_column=some_value

Notice the WHERE clause in the SQL UPDATE statement!

The WHERE clause specifies which records or records need to be updated. If you omit the WHERE clause, all records will be updated!

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