CurseForge · Minecraft mod
Ledger Databases
Adds support for additional database types to Ledger
Quick answer
Which Ledger Databases release should I use?
Ledger Databases ledger-databases-1.2.2.jar targets 26.1, 26.1.1, 26.1.2 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 3 required mods have matching files.
Where it goes
Is Ledger Databases required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Ledger Databases ledger-databases-1.2.2.jar need?
ledger-databases-1.2.2.jar. Change the file and its required mods may change too.
Install Ledger, Fabric Language Kotlin, Fabric API first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Ledger Databases without breaking your instance.
Built for Ledger Databases ledger-databases-1.2.2.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ledger-databases-1.2.2.jar. It targets 26.1, 26.1.1, 26.1.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Ledger, Fabric Language Kotlin, Fabric API first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ledger-databases-1.2.2.jar. It opens that exact file at the source.
About this project
What does Ledger Databases add?
Ledger Databases
Adds support for MySQL, PostgreSQL and H2 databases in Ledger
Use
Common
For all database types, you will need to place Ledger Databases in your mods folder along with the latest version of ledger
H2
Add the following to the bottom of your Ledger config file:
[database_extensions]
database = "H2"
MySQL
Add the following to the bottom of your Ledger config file:
[database_extensions]
database = "MYSQL"
url = ""
username = ""
password = ""
properties = []
url: Must be URL of database with /<database_name> appended. An example URL would be localhost/ledger. You can optionally add port information such as localhost:3000/ledger
PostgreSQL
[database_extensions]
database = "MYSQL"
url = ""
username = ""
password = ""
properties = []
Connector properties
For some databases, such as MySQL, you can provide properties to the database connector. For each property, add a string entry to the properties array.
properties = ["useJDBCCompliantTimezoneShift=true", "useLegacyDatetimeCode=false", "serverTimezone=UTC"]
Project description from CurseForge.
Pick your setup
Ledger Databases by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
2 loader builds1.21.3
2 loader buildsShowing the newest 12 of 31 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Ledger Databases versions and loaders
ledger-databases-1.2.2.jar
1 Apr 2026
ledger-databases-1.2.1.jar
4 Nov 2025
ledger-databases-1.2.0.jar
24 Apr 2024
ledger-databases-1.1.1.jar
16 Jun 2022
ledger-databases-1.1.0.jar
17 Jan 2022
ledger-databases-1.0.1.jar
1 Dec 2021
ledger-databases-1.0.0.jar
18 Sept 2021
Looking for an older file? The official CurseForge project page is in Resources.