What is UPSERT and how to do it in MySQL

UPSERT allows the Data Manipulation Language (DML's) author to insert a new row or update an existing row. UPSERT is an atomic operation meaning it is a single-step operation. MySQL, by default, provides ON DUPLICATE KEY UPDATE option to INSERT, which performs this task.

1. What is Upsert in MySQL?
2. What is an Upsert operation?
3. What is Upsert key?
4. How do you insert if row does not exist Upsert in MySQL?
5. How do I know if MySQL insert was successful?
6. How do you insert if row does not exist?
7. What is the difference between Upsert and insert?
8. What is Upsert query?
9. What is idLookup?
10. How do I Upsert in MongoDB?
11. How do I use Upsert in Sequelize?
12. What does Upsert do in Salesforce?

What is Upsert in MySQL?

UPSERT is one of the essential features of DBMS software for managing the database. This operation allows the DML users to insert a new record or update existing data into a table. By default, MySQL provides the ON DUPLICATE KEY UPDATE option to INSERT, which accomplishes this task. ...

What is an Upsert operation?

upsert (plural upserts) (computing, databases) An operation that inserts rows into a database table if they do not already exist, or updates them if they do.

What is Upsert key?

Using the upsert operation, you can either insert or update an existing record in one call. To determine whether a record already exists, the upsert statement or Database method uses the record's ID as the key to match records, a custom external ID field, or a standard field with the idLookup attribute set to true.

How do you insert if row does not exist Upsert in MySQL?

How to INSERT If Row Does Not Exist (UPSERT) in MySQL

1. Using INSERT IGNORE.
2. Using REPLACE.
3. Using INSERT ... ON DUPLICATE KEY UPDATE.

How do I know if MySQL insert was successful?

If there is no error/exception caught, then your INSERT was successful. If a duplicate email address is submitted, then a very informative exception will be generated.

How do you insert if row does not exist?

Solution 2

1. insert into tablename (code) values ('1448523') WHERE not exists(select * from tablename where code='1448523') --incorrect in insert command.
2. If Not Exists(select * from tablename where code='1448523') Begin insert into tablename (code) values ('1448523') End.

What is the difference between Upsert and insert?

Insert is using to upload just new records. Upsert is used to upload new records and update existing records at the same time.

What is Upsert query?

From Wikipedia, the free encyclopedia. A relational database management system uses SQL MERGE (also called upsert) statements to INSERT new records or UPDATE existing records depending on whether condition matches. It was officially introduced in the SQL:2003 standard, and expanded in the SQL:2008 standard.

What is idLookup?

basically it is a property of specific field types. Where an external ID is a property you set to indicate a custom field can be used as an external ID. Marking a field as an External ID essentially set the idlookup property to true. A 10 second search pulled up this information.

How do I Upsert in MongoDB?

MongoDB upsert option is used with update method which creates a new document if the query does not retrieve any documents satisfying the criteria. The default value for this option is false.

How do I use Upsert in Sequelize?

As of Sequelize v4. 32.1, you can pass a boolean returning as a query param to select between returning an array with the record and a boolean, or just a boolean indicating whether or not a new record was created. You do still need to provide the id of the record you want to upsert or a new record will be created.

What does Upsert do in Salesforce?

The Salesforce Upsert step updates existing records and inserts new records into your Salesforce database using the Salesforce Web Service. Reads records directly from your Salesforce database. Inserts records directly into your Salesforce database.