diff options
Diffstat (limited to 'mongodb.html.markdown')
| -rw-r--r-- | mongodb.html.markdown | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mongodb.html.markdown b/mongodb.html.markdown index 959b57d0..306f361c 100644 --- a/mongodb.html.markdown +++ b/mongodb.html.markdown @@ -256,7 +256,7 @@ db.engineers.find({ $gt: { age: 25 }}) db.engineers.find({ $gte: { age: 25 }}) // Find all less than or less than equal to some condition -db.engineers.find({ $lte: { age: 25 }}) +db.engineers.find({ $lt: { age: 25 }}) db.engineers.find({ $lte: { age: 25 }}) // Find all equal or not equal to @@ -293,7 +293,7 @@ db.engineers.find({ $not: { // Must match none of the query conditions db.engineers.find({ $nor [ - gender: 'Female, + gender: 'Female', age: { $gte: 18 } @@ -400,6 +400,6 @@ features, I would look at - Aggregation - useful for creating advanced queries to be executed by the database -- Idexing allows for caching, which allows for much faster execution of queries +- Indexing allows for caching, which allows for much faster execution of queries - Sharding allows for horizontal data scaling and distribution between multiple machines. |