# Query and projection operators
<a name="mongo-apis-query-projection-operators"></a>

This section provides detailed information about query and projection operators supported by Amazon DocumentDB.

**Topics**
+ [$](dollar-projection.md)
+ [$all](all.md)
+ [$and](and.md)
+ [$bitsAllClear](bitsAllClear.md)
+ [$bitsAllSet](bitsAllSet.md)
+ [$bitsAnyClear](bitsAnyClear.md)
+ [$bitsAnySet](bitsAnySet.md)
+ [$comment](comment.md)
+ [$elemMatch](elemMatch.md)
+ [$eq](eq.md)
+ [$exists](exists.md)
+ [$expr](expr.md)
+ [$gt](gt.md)
+ [$gte](gte.md)
+ [$in](in.md)
+ [$jsonSchema](jsonSchema.md)
+ [$lt](lt.md)
+ [$mod](mod-query.md)
+ [$lte](lte.md)
+ [$meta](meta.md)
+ [$ne](ne.md)
+ [$nin](nin.md)
+ [$nor](nor.md)
+ [$not](not.md)
+ [$or](or.md)
+ [$regex](regex.md)
+ [$slice](slice-projection.md)
+ [$size](size-query.md)
+ [$text](text.md)
+ [$type](type.md)