---
sidebar_position: 4
description: Add table column and other functions to work with MySQL in the Open Integration Package, a free open-source integration library for 1C:Enterprise 8, OneScript and CLI
keywords: [1C, 1С, 1С:Enterprise, 1С:Enterprise 8.3, API, Integration, Services, Exchange, OneScript, CLI, MySQL]
---

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

# Add table column
 Adds a new column to an existing table



`Function AddTableColumn(Val Table, Val Name, Val DataType, Val Connection = "", Val Tls = "") Export`

  | Parameter | CLI option | Type | Required | Description |
  |-|-|-|-|-|
  | Table | --table | String | ✔ | Table name |
  | Name | --name | String | ✔ | Column name |
  | DataType | --type | String | ✔ | Column data type |
  | Connection | --dbc | String, Arbitrary | ✖ | Connection or connection string |
  | Tls | --tls | Structure Of KeyAndValue | ✖ | TLS settings, if necessary. See GetTlsSettings |

  
  Returns:  Map Of KeyAndValue - Result of query execution

<br/>




```bsl title="1C:Enterprise/OneScript code example"
    Address  = "127.0.0.1";
    Login    = "bayselonarrend";
    Password = "12we...";

    Base     = "testbase1";
    Table    = "testtable";
    Name     = "new_field";
    DataType = "MEDIUMTEXT";

    ConnectionString = OPI_MySQL.GenerateConnectionString(Address, Base, Login, Password);

    Result = OPI_MySQL.AddTableColumn(Table, Name, DataType, ConnectionString);
```
 



```json title="Result"
{
 "result": true
}
```