Altering sharded property databases
Enterprise EditionNot available on AuraIntroduced in 2025.10

You can alter a sharded property database on two levels. It is possible to change the entire sharded database with ALTER DATABASE or alter a specific shard with ALTER DATABASE <shard-name>.

Syntax

Command Syntax

ALTER DATABASE <name>

ALTER DATABASE name [IF EXISTS]
{
  SET ACCESS {READ ONLY | READ WRITE} |
  SET GRAPH SHARD {
    SET TOPOLOGY ((n PRIMAR{Y|IES}) | (m SECONDAR{Y|IES}))+
  } |
  SET PROPERTY SHARD {
    SET TOPOLOGY n REPLICA[S]
  }
}
[WAIT [n [SEC[OND[S]]]]|NOWAIT]

ALTER DATABASE <graph-shard>

ALTER DATABASE name [IF EXISTS]
SET TOPOLOGY (
  (n PRIMAR{Y|IES}) |
  (m SECONDAR{Y|IES})
)
[WAIT [n [SEC[OND[S]]]] | NOWAIT]

ALTER DATABASE <property-shard>

ALTER DATABASE name [IF EXISTS]
SET TOPOLOGY (
  n REPLICA[S]
)
[WAIT [n [SEC[OND[S]]]] | NOWAIT]

Example 1: Change the topology of the graph shard and all property shards

ALTER DATABASE foo-sharded
SET GRAPH SHARD {
 SET TOPOLOGY 1 PRIMARY 2 SECONDARIES
}
SET PROPERTY SHARDS {
  SET TOPOLOGY 1 REPLICA;
}

Example 2: Change the topology of the graph shard

ALTER DATABASE `foo-sharded-g000`
SET TOPOLOGY 1 PRIMARY 2 SECONDARIES;

Example 3: Change the topology of a specific property shard

ALTER DATABASE `foo-sharded-p000`
SET TOPOLOGY 2 REPLICAS;