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Database

MariaDB and MySQL integration — two-way sync

Keep supported MariaDB and MySQL records aligned with two-way data sync. Give each team access to current data while controlling which system can update each field.

  • Field mappings and sync direction under your control
  • Inspect and resolve record errors in one dashboard
Two-way sync for supported objects
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Why teams connect MariaDB and MySQL

Put your MariaDB and MySQL data to work

Start with the work your team needs to complete: keep records up to date, make operational data available for reporting, or move data to a new system. Choose one MariaDB and MySQL workflow to test, define what success looks like, and decide who handles failed updates.

  • 01 Two-way sync between a MariaDB application database and a CRM so both systems hold the same customer records
  • 02 Expose SaaS objects as MariaDB tables for internal tools already built on the MySQL-compatible stack
  • 03 Two-way sync between a MySQL application database and a CRM so operational records and sales records stay identical
  • 04 Expose SaaS objects as MySQL tables so legacy internal tools built on MySQL can read live business data

What records can you sync?

Explore the record types and read/write requirements for each system.

MariaDBRead and write support varies by recordTables

Record types covered in the setup guide

Record typeCoverage and requirements
TablesSee connector requirements. Confirm field permissions and sync direction.

Read the MariaDB connector guide

MySQLRead and write support varies by recordTables

Record types covered in the setup guide

Record typeCoverage and requirements
TablesSee connector requirements. Confirm field permissions and sync direction.

Read the MySQL connector guide

Implementation guideConnection requirements, mapping worksheets, testing, and recovery.

Connection requirements and limits

MariaDB

Integration interface
SQL wire protocol (MySQL-compatible client/server protocol)
Authentication
Database credentials (connection string or parameters), with optional SSL root certificate upload and optional SSH tunnel (SSH user + host)
Change detection
Stacksync creates database triggers for change logging. Trigger permissions and binary-log settings must allow their creation.
Read access
Available for supported records
Write access
Available for supported records

Limitations to check

  • Composite keys are unsupported and schema/table/column renames require a sync configuration update.
Technical documentation

Documentation reviewed 2026-09-15. Check the linked guides for current account and record requirements.

MariaDB setup guide

MySQL

Integration interface
SQL wire protocol (MySQL client/server protocol)
Authentication
Database credentials entered as a connection string or parameters, with optional SSL root certificate upload and optional SSH tunnel (SSH user + SSH host)
Change detection
Stacksync creates database triggers for change logging. Trigger permissions and binary-log settings must allow their creation.
Read access
Available for supported records
Write access
Available for supported records

Limitations to check

  • Composite keys are unsupported and schema/table/column renames require a sync configuration update.
Technical documentation

Documentation reviewed 2026-09-15. Check the linked guides for current account and record requirements.

MySQL setup guide

Design your implementation

Use the worksheets and reference checks to capture record identity, ownership, and the result your business expects.

Implementation reference

Record identity and field ownership

Keep each record tied to its source ID. Use the references below to choose field owners and preserve relationships between records.

Download the mapping worksheet

CSV · No email required · Record matching, ownership, and test cases

Choose the data relationship

Choose the tables you need in MariaDB and MySQL, then map their keys, field types, and filters. Your schemas determine how records relate and which system should own each field. Use the worksheet to document those choices before testing the first load.

Architecture decision

Choose how to connect your systems

Choose your tables and update rules before the integration method. A live application copy, a reporting table, and a one-time migration need different handling for updates, history, deletes, and reconciliation.

Stacksync managed sync

Best fit
Two-way sync for supported objects. Choose the records, writable fields, and permissions for your workflow.
Operating responsibility
Fits ongoing record synchronization when the required operations are supported. Add workflow steps for approvals or business actions that go beyond copying fields.
Before you choose
Provide your table or object schemas and one example update; confirm the supported keys, fields, and direction.

Native vendor integration

Best fit
A vendor-built integration may fit if it supports your MariaDB and MySQL record types.
Operating responsibility
Can reduce setup for a supported workflow. You may need another method for records or business steps it does not cover.
Before you choose
First check whether either vendor offers this integration. If available, verify your record types, update direction, account tier, and related-record handling.

Custom API or workflow

Best fit
Consider when MariaDB and MySQL need a transformation, approval, or action outside a direct record sync.
Operating responsibility
Provides control over business steps; the team owns credentials, version changes, error queues, and reconciliation.
Before you choose
Verify endpoint permissions, pagination, quotas, duplicate detection, and failure recovery.

File or scheduled snapshot

Best fit
Consider for a one-time MariaDB / MySQL migration or a reporting need with an explicit freshness window.
Operating responsibility
Can simplify a bounded transfer; later changes and deletion history require another extraction or a separately designed incremental process.
Before you choose
Record the extraction cutoff, source IDs, encoding, date/number formats, and reconciliation totals.

Workflow reference

From a business event to the right update

Open a workflow to see its trigger, record relationships, and expected result.

Plan table mappings between MariaDB and MySQL

Starting event: A selected source table needs an operational replica, a reporting projection, or a migration copy.

  1. Choose actual tables in MariaDB and MySQL and compare their schemas and record types.
  2. Specify the primary/business key, type conversions, filter boundaries, relationship dependencies, and the source of each writable field.
  3. Choose a one-way copy or two-way sync according to connector support and your update rules. Keep source views, aggregate outputs, and writable base tables distinct.

Expected result: Counts reconcile within identical filters; updates preserve keys; precision, nulls, deletes, and schema changes follow the agreed mapping rules.

If it fails: Compare current source state, key mapping, and destination constraints before retrying. Reconcile the backlog after any schema or permission change.

Production readiness

Test the behavior your business depends on

Keep both record IDs with the expected and actual result. Reconcile the same filters and time window in each system.

Direction and permissions

Test case

Check that each connected account can read and write the chosen objects. Exercise both directions with a test record before enabling production changes.

Expected result

Only an approved, supported direction and permitted fields are written.

Schema, keys, and reconciliation

Test case

Use an actual MariaDB and MySQL table. Compare key uniqueness, nulls, decimal precision, timezone conversions, and counts within identical filters.

Expected result

The process meets its agreed freshness target and reconciliation has no unexplained differences.

Failure recovery

Find the cause. Restore the data flow.

Start with the failed record and the destination error, then inspect the source value, field requirements, and access.

A record type or update is unavailable

Investigate

Check the MariaDB and MySQL connector guides, account permissions, and any operations marked On Request.

Next action

Ask the integration team to confirm a supported way to handle that record. Verify whether it needs connector configuration or a separate workflow step.

Source and destination disagree after a retry

Investigate

Compare current source values, destination validation, identity mappings, and any side effects already completed.

Next action

Stacksync issue retry reads the current source state. Decide the intended state before retrying or reverting; reconcile downstream effects separately.

Read the Stacksync issues dashboard guide for retry and revert behavior.

How updates move between MariaDB and MySQL

See how each system detects changes and which updates the other system can receive. Each direction has its own permissions and record requirements.

MariaDB MySQL Timing depends on the connected systems

Detect changesStacksync creates database triggers for change logging. Trigger permissions and binary-log settings must allow their creation.

Apply updatesSelected writable fields update in MySQL. Its permissions and validation rules still apply; rejected records can be inspected in the Issues dashboard.

MySQL MariaDB Timing depends on the connected systems

Detect changesStacksync creates database triggers for change logging. Trigger permissions and binary-log settings must allow their creation.

Apply updatesSelected writable fields update in MariaDB. Its permissions and validation rules still apply; rejected records can be inspected in the Issues dashboard.

Update timing and record limits

  • Measure initial-load and ongoing-change latency separately. Source detection, selected objects, account limits, and destination validation determine the observed delay.

Prepare MariaDB and MySQL access

Set up both accounts before testing the mapping. Use test records where available, and identify the account administrator who can approve access and help resolve setup errors.

MariaDB setup checklist

  • Use one auto-generated primary key per selected table and grant the connected user the required table permissions.
  • Verify that Stacksync can create triggers. When binary logging is enabled, an administrator may need to enable log_bin_trust_function_creators.

Setup guides: Authorize MariaDB

MySQL setup checklist

  • Use one auto-generated primary key per selected table and grant the connected user the required table permissions.
  • Verify that Stacksync can create triggers. When binary logging is enabled, an administrator may need to enable log_bin_trust_function_creators.

Setup guides: Authorize MySQL

Prepare to go live

Record the fields each system can update, the first-load cutoff, both record IDs, the expected update delay, and who handles errors. Complete the tests before production before expanding to more records.

Use the MariaDB and MySQL planning worksheet to capture these decisions. Record the access owner in the worksheet and enter credentials only in the connection setup.

See Stacksync in action · Review current pricing

Security and control for your integrations

Use SSO and SCIM to manage access, secure connection options to reach your systems, and record-level retry and revert controls to resolve sync errors.

Explore security controls
FAQ

MariaDB and MySQL integration FAQ

See your workflow in Stacksync

Walk through your MariaDB and MySQL records, field mappings, and requirements with an integration engineer.