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Oracle Database node#

Use the Oracle Database node to automate work in Oracle Database, and integrate Oracle Database with other applications. n8n has built-in support for a wide range of Oracle Database features, including executing an SQL query, as well as inserting, and updating rows in a database.

On this page, you'll find a list of operations the Oracle Database node supports and links to more resources.

Credentials

Refer to Oracle Database credentials for guidance on setting up authentication.

Operations#

Delete#

Use this operation to delete an entire table or rows in a table.

Enter these parameters:

  • Credential to connect with: Create or select an existing Oracle Database credential.
  • Operation: Select Delete.
  • Schema: Choose the schema that contains the table you want to work on. Select From list to choose the schema from the dropdown list or By Name to enter the schema name.
  • Table: Choose the table that you want to work on. Select From list to choose the table from the dropdown list or By Name to enter the table name.
  • Command: The deletion action to take:
    • Truncate: Removes the table's data but preserves the table's structure.
    • Delete: Delete the rows that match the "Select Rows" condition. If you don't select anything, Oracle Database deletes all rows.
      • Select Rows: Define a Column, Operator, and Value to match rows on. The value can be passed as JSON using expression or string.
      • Combine Conditions: How to combine the conditions in "Select Rows". AND requires all conditions to be true, while OR requires at least one condition to be true.
    • Drop: Deletes the table's data and structure permanently.

Delete options#

  • Auto Commit: Whether this property is true, then the transaction in the current connection is automatically committed at the end of statement execution.
  • Statement Batching: The way to send queries to the database:
    • Single Statement: A single Statement for all incoming items.
    • Independently: Execute one Statement per incoming item of the execution.
    • Transaction: Execute all Statements in a transaction. If a failure occurs, Oracle Database rolls back all changes.

Execute SQL#

Use this operation to execute an SQL query.

Enter these parameters:

  • Credential to connect with: Create or select an existing Oracle Database credential.
  • Operation: Execute SQL Execute SQL.
  • Statement: The SQL statement to execute. You can use n8n expressions and positional parameters like :1, :2, or named parameters like :name, :id to use with Use bind parameters.

Execute Statement options#

  • Auto Commit: Whether this property is true, then the transaction in the current connection is automatically committed at the end of statement execution.
  • Bind Variable Placeholder Values: Enter the values for the bind parameters used in the statement Use bind parameters.
  • Output Numbers As String: Whether the numbers should be retrieved as string.
  • Fetch Array Size: This property is a number that sets the size of an internal buffer used for fetching query rows from Oracle Database. Changing it may affect query performance but does not affect how many rows are returned to the application.
  • Number of Rows to Prefetch: This property is a query tuning option to set the number of additional rows the underlying Oracle driver fetches during the internal initial statement execution phase of a query.

Insert#

Use this operation to insert rows in a table.

Enter these parameters:

  • Credential to connect with: Create or select an existing Oracle Database credential.
  • Operation: Select Insert.
  • Schema: Choose the schema that contains the table you want to work on. Select From list to choose the schema from the dropdown list or By Name to enter the schema name.
  • Table: Choose the table that you want to work on. Select From list to choose the table from the dropdown list or By Name to enter the table name.
  • Mapping Column Mode: How to map column names to incoming data:
    • Map Each Column Manually: Select the values to use for each column Use n8n expressions for bind values.
    • Map Automatically: Automatically map incoming data to matching column names in Oracle Database. The incoming data field names must match the column names in Oracle Database for this to work. If necessary, consider using the edit fields (set) node before this node to adjust the format as needed.

Insert options#

  • Auto Commit: Whether this property is true, then the transaction in the current connection is automatically committed at the end of statement execution.
  • Output Columns: Choose from the list, or specify IDs using an expression.
  • Statement Batching: The way to send queries to the database:
    • Single Statement: A single Statement for all incoming items.
    • Independently: Execute one Statement per incoming item of the execution.
    • Transaction: Execute all Statements in a transaction. If a failure occurs, Oracle Database rolls back all changes.

Insert or Update#

Use this operation to insert or update rows in a table.

Enter these parameters:

  • Credential to connect with: Create or select an existing Oracle Database credential.
  • Operation: Select Insert or Update.
  • Schema: Choose the schema that contains the table you want to work on. Select From list to choose the schema from the dropdown list or By Name to enter the schema name.
  • Table: Choose the table that you want to work on. Select From list to choose the table from the dropdown list or By Name to enter the table name.
  • Mapping Column Mode: How to map column names to incoming data:
    • Map Each Column Manually: Select the values to use for each column Use n8n expressions for bind values.
    • Map Automatically: Automatically map incoming data to matching column names in Oracle Database. The incoming data field names must match the column names in Oracle Database for this to work. If necessary, consider using the edit fields (set) node before this node to adjust the format as needed.

Insert or Update options#

  • Auto Commit: Whether this property is true, then the transaction in the current connection is automatically committed at the end of statement execution.
  • Statement Batching: The way to send queries to the database:
    • Single Statement: A single Statement for all incoming items.
    • Independently: Execute one Statement per incoming item of the execution.
    • Transaction: Execute all Statements in a transaction. If a failure occurs, Oracle Database rolls back all changes.

Select#

Use this operation to select rows in a table.

Enter these parameters:

  • Credential to connect with: Create or select an existing Oracle Database credential.
  • Operation: Select Select.
  • Schema: Choose the schema that contains the table you want to work on. Select From list to choose the schema from the dropdown list or By Name to enter the schema name.
  • Table: Choose the table that you want to work on. Select From list to choose the table from the dropdown list or By Name to enter the table name.
  • Return All: Whether to return all results or only up to a given limit.
  • Limit: The maximum number of items to return when Return All is disabled.
  • Select Rows: Set the conditions to select rows. Define a Column, Operator, and Value(as json) to match rows on. If you don't select anything, Oracle Database selects all rows.
  • Combine Conditions: How to combine the conditions in Select Rows. AND requires all conditions to be true, while OR requires at least one condition to be true.
  • Sort: Choose how to sort the selected rows. Choose a Column from a list or by ID and a sort Direction.

Select options#

  • Auto Commit: Whether this property is true, then the transaction in the current connection is automatically committed at the end of statement execution.
  • Output Numbers As String: Whether the numbers should be retrieved as string.
  • Fetch Array Size: This property is a number that sets the size of an internal buffer used for fetching query rows from Oracle Database. Changing it may affect query performance but does not affect how many rows are returned to the application.
  • Number of Rows to Prefetch: This property is a query tuning option to set the number of additional rows the underlying Oracle driver fetches during the internal initial statement execution phase of a query.

Update#

Use this operation to update rows in a table.

Enter these parameters:

  • Credential to connect with: Create or select an existing Oracle Database credential.
  • Operation: Select Update.
  • Schema: Choose the schema that contains the table you want to work on. Select From list to choose the schema from the dropdown list or By Name to enter the schema name.
  • Table: Choose the table that you want to work on. Select From list to choose the table from the dropdown list or By Name to enter the table name.
  • Mapping Column Mode: How to map column names to incoming data:
    • Map Each Column Manually: Select the values to use for each column Use n8n expressions for bind values.
    • Map Automatically: Automatically map incoming data to matching column names in Oracle Database. The incoming data field names must match the column names in Oracle Database for this to work. If necessary, consider using the edit fields (set) node before this node to adjust the format as needed.

Update options#

  • Auto Commit: Whether this property is true, then the transaction in the current connection is automatically committed at the end of statement execution.
  • Statement Batching: The way to send queries to the database:
    • Single Statement: A single Statement for all incoming items.
    • Independently: Execute one Statement per incoming item of the execution.
    • Transaction: Execute all Statements in a transaction. If a failure occurs, Oracle Database rolls back all changes.

Templates and examples#

Browse OracleDB integration templates, or search all templates

Refer to SQL Language Reference for more information about the service.

Use bind parameters#

When creating a query to run on a Oracle database, you can use the Bind Variable Placeholder Values field in the Options section to load data into the query. n8n sanitizes data in query parameters, which prevents SQL injection.

For example, you want to find a specific fruits by their color. Given the following input data:

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[
    {
        "FRUIT_ID": 1,
        "FRUIT_NAME": "Apple",
        "COLOR": "Red" 
    },
    {
        "FRUIT_ID": 2,
        "FRUIT_NAME": "Banana",
        "COLOR": "Yellow"
    }
]

You can write a query like:

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SELECT * FROM FRUITS WHERE COLOR = :col

Then in Bind Variable Placeholder Values, provide the field values to use. You can provide fixed values or expressions. For this example, use expressions so the node can pull the color from each input item in turn:

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// fruits is an example table name
fruits, {{ $json.color }}

Use n8n Expressions for bind values#

For Values to Send, you can provide inputs using n8n Expressions. Below are examples for different data types — you can either enter constant values or reference fields from previous items ($json):

JSON#

  • Constant: {{ { k1: "v1", k2: "v2" } }}
  • From a previous item: {{ $json.COL_JSON }}

VECTOR#

  • Constant: {{ [1, 2, 3, 4.5] }}
  • From a previous item: {{ $json.COL_VECTOR }}

BLOB#

  • Constant: {{ [94, 87, 34] }} or {{ ' BLOB data string' }}
  • From a previous item: {{ $json.COL_BLOB }}

RAW#

  • Constant: {{ [94, 87, 34] }}
  • From a previous item: {{ $json.COL_RAW }}

BOOLEAN#

  • Constant: {{ true }}
  • From a previous item: {{ $json.COL_BOOLEAN }}

NUMBER#

  • Constant: 1234
  • From a previous item: {{ $json.COL_NUMBER }}

VARCHAR#

  • Constant: ' Hello World '
  • From a previous item: {{ $json.COL_CHAR }}

These examples assume JSON keys (e.g. COL_JSON, COL_VECTOR) map directly to the respective SQL column types.

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