# ColumnStore INSERT

The `INSERT` statement allows you to add data to tables.

## Syntax

```sql
INSERT 
 INTO tbl_name [(col,...)]
 {VALUES | VALUE} ({expr | DEFAULT},...),(...),...
```

The following statement inserts a row with all column values into the *customer* table:

```sql
INSERT INTO customer (custno, custname, custaddress, phoneno, cardnumber, comments) 
  VALUES (12, ‘JohnSmith’, ‘100 First Street, Dallas’, ‘(214) 555-1212’,100, ‘On Time’)
```

The following statement inserts two rows with all column values into the *customer* table:

```sql
INSERT INTO customer (custno, custname, custaddress, phoneno, cardnumber, comments) VALUES 
  (12, ‘JohnSmith’, ‘100 First Street, Dallas’, ‘(214) 555-1212’,100, ‘On Time’),
  (13, ‘John Q Public’, ‘200 Second Street, Dallas’, ‘(972) 555-1234’, 200, ‘LatePayment’);
```

## INSERT SELECT

With `INSERT ... SELECT`, you can quickly insert many rows into a table from one or more other tables.

* ColumnStore ignores the `ON DUPLICATE KEY` clause.
* Non-transactional `INSERT ... SELECT` is directed to ColumnStores cpimport tool by default, which significantly increases performance.
* Transactional `INSERT ... SELECT` statements (that is with `AUTOCOMMIT` off or after a `START TRANSACTION`) are processed through normal DML processes.

## AUTO\_INCREMENT

Example for using `AUTO_INCREMENT` in ColumnStore:

```sql
CREATE TABLE autoinc_test(
id INT,
name VARCHAR(10))
ENGINE=columnstore COMMENT 'autoincrement=id';

INSERT INTO autoinc_test (name) VALUES ('John');
INSERT INTO autoinc_test (name) VALUES ('Doe');
```

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