Programming/Kdb/Installing kdb

• Kdb+/q* can be downloaded from https://kx.com/developers/download-licenses/

In particular, there are two free versions of kdb+/q: the 32 Bit Personal Edition and the 64 Bit Personal Edition (On-Demand).

Both editions are licensed for personal use.

The *32 Bit Personal Edition*:

• is permitted to run on-premises;
• is permitted to run on cloud;
• provides access to KX Fusion interfaces and integrations;
• provides access to community support;
• Linux/Mac/Windows/Raspberry pi versions are available.

The main limitation of the 32 Bit Personal Edition and, more generally, of any 32-bit program, is that it can only ever use up to 4 GB of memory. That's due to the 32-bit address space, since 2^32 = 4,294,967,296 bytes. For some use cases this may be a serious limitation.

The *64 Bit Personal Edition (On-Demand)*:

• requires "always on" internet connection;
• is permitted to run on-premises;
• is compatible with KX Developer and KX Dashboards Direct;
• provides access to KX Fusion interfaces and integrations;
• provides access to community support;
• gives regular access to upgrades;
• Linux/Mac/Windows versions are available.

The 32 Bit Personal Edition can be downloaded immediately, whereas for the 64 Bit Personal Edition (On-Demand) you would need to request a license. Both editions are available via https://kx.com/developers/download-licenses/