Database limitations on number of projects in JIRA
This article describes known limitations imposed by various database servers on number of projects which can be created in JIRA.
No hard limit as a query can have any number of parameters, as long as it remains within the maximum batch size — which defaults to 65,536 * Network Packet Size (256MB). In practice, however, 2000 is the limit as this is the maximum number of parameters allowed by SQL Server. (See - JRA-38790Ofbiz generates queries with large IN clauses that result in SQL Server errors VERIFIED for more details.)
No hard limits; SQL query size is limited to the OS maximum file size.
1000 (Only for JIRA version prior to 6.1.1. See JRA-19317 for more details.)
No hard limit; maximum query size has to be less than max_allowed_packet, which defaults to 1GB, but can be any value in the range 1024-1073741824 Bytes.
HSQLDB is supported only for evaluation purpose only. No limits specified, but in practice limited by heap memory.
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