MariaDB

Node catalog Actions

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Run SQL and select, insert, update or delete MariaDB rows

Usage and specifics

Select the database connection and table or query. Write and delete operations change remote data. For a trigger, configure tracking fields and interval, then publish.

Technical type : mariadb. Runtime : nodulz.

Credentials and prerequisites

MariaDB (database / mariadb). MySQL-compatible SQL database

Create credentials in your nodulz instance’s Credentials area, then select them on the node. Availability depends on ownership and sharing. See the credentials guide for access and rotation.

Parameters

Names below are technical keys. Defaults are not a ready-to-run configuration: complete fields required by your operation. Paths containing [] describe list items; some fields depend on the selected mode.

Parameter	Type	Default	Values / limits
`credentialId`	`string`	`""`	-
`operation`	`enum`	`"query"`	`query`, `select`, `insert`, `update`, `delete`
`query`	`string`	`"SELECT 1 AS ok"`	-
`parameters`	`string`	`"[]"`	-
`table`	`string`	`""`	-
`data`	`string`	`"{}"`	-
`match`	`string`	`"{}"`	-
`limit`	`number`	`100`	-; ≥ 1, ≤ 10000
`rawExpressions`	`boolean`	`false`	-

Configuration help

credentialId Credential: Choose a credential matching the node engine. The SQL account controls read and write permissions.
operation Operation: Run SQL or act on rows. Updates and deletes require a non-empty filter.
query SQL query: Use ? for values, in parameter order. Expressions are sent as parameters: do not wrap them in quotes.
parameters JSON parameters: JSON array, for example [42, "Alice"]. Workflow expressions are supported. Values bind to ? placeholders.
rawExpressions Insert expressions as-is (unsafe): Only for dynamic table or column names, with trusted values.
table Table: Exact name in the credential database. Triggers use a fixed name without expressions.
data JSON data: Non-empty JSON object of column names and values. Expressions supported; values are parameterized.
match JSON conditions: JSON object of equality conditions combined with AND. null matches SQL NULL. An empty object is allowed only for reads.
limit Maximum rows: Between 1 and 10,000 rows for a select.

Initial configuration

Initial catalog configuration example, to adapt before running. Keep secrets in credentials.

json

{
  "credentialId": "",
  "operation": "query",
  "query": "SELECT 1 AS ok",
  "parameters": "[]",
  "table": "",
  "data": "{}",
  "match": "{}",
  "limit": 100,
  "rawExpressions": false
}

Verification

Test with representative data. Check node output in the inspector and logs, then use editor mapping for downstream fields. A trigger test with a simulated payload does not validate external service delivery.