MongoDB Database

  1. CRUD Operations: Manipulating Data
    1. Create Operations
      1. Inserting a Single Document (insertOne)
        1. Basic Syntax and Usage
          1. Insert Options and Parameters
            1. Handling Duplicate _id Errors
              1. Return Value Analysis
              2. Inserting Multiple Documents (insertMany)
                1. Batch Insert Syntax
                  1. Ordered vs Unordered Inserts
                    1. Error Handling in Bulk Operations
                      1. Performance Considerations
                      2. Insert Behavior and Validation
                        1. Document Validation on Insert
                          1. Schema Validation Rules
                            1. Write Concern Impact
                          2. Read Operations (Querying)
                            1. Finding Documents
                              1. find() Method Syntax
                                1. findOne() Method Usage
                                  1. Cursor Behavior and Iteration
                                    1. Query Result Formatting
                                    2. Basic Query Syntax
                                      1. Equality Queries
                                        1. Field Existence Queries
                                          1. Type-Based Queries
                                          2. Query and Projection Operators
                                            1. Comparison Operators
                                              1. $eq (Equal)
                                                1. $gt (Greater Than)
                                                  1. $gte (Greater Than or Equal)
                                                    1. $lt (Less Than)
                                                      1. $lte (Less Than or Equal)
                                                        1. $ne (Not Equal)
                                                          1. $in (In Array)
                                                            1. $nin (Not In Array)
                                                            2. Logical Operators
                                                              1. $and (Logical AND)
                                                                1. $or (Logical OR)
                                                                  1. $not (Logical NOT)
                                                                    1. $nor (Logical NOR)
                                                                    2. Element Operators
                                                                      1. $exists (Field Exists)
                                                                        1. $type (Field Type)
                                                                          1. $size (Array Size)
                                                                          2. Array Operators
                                                                            1. $all (All Elements Match)
                                                                              1. $elemMatch (Element Match)
                                                                              2. Evaluation Operators
                                                                                1. $regex (Regular Expression)
                                                                                  1. $text (Text Search)
                                                                                    1. $where (JavaScript Expression)
                                                                                    2. Projections (Field Selection)
                                                                                      1. Including Specific Fields
                                                                                        1. Excluding Specific Fields
                                                                                          1. Projection Operators
                                                                                            1. Nested Field Projections
                                                                                          2. Querying on Embedded Documents
                                                                                            1. Dot Notation in Queries
                                                                                              1. Exact Subdocument Matching
                                                                                                1. Partial Subdocument Matching
                                                                                                  1. Nested Field Queries
                                                                                                  2. Querying on Arrays
                                                                                                    1. Array Element Matching
                                                                                                      1. Array Query Operators
                                                                                                        1. Positional Operators
                                                                                                          1. Array Index-Based Queries
                                                                                                          2. Query Optimization Techniques
                                                                                                            1. Index Usage in Queries
                                                                                                              1. Query Plan Analysis
                                                                                                                1. Performance Tuning
                                                                                                              2. Update Operations
                                                                                                                1. Updating a Single Document (updateOne)
                                                                                                                  1. Basic Update Syntax
                                                                                                                    1. Filter Criteria
                                                                                                                      1. Update Options
                                                                                                                        1. Upsert Functionality
                                                                                                                        2. Updating Multiple Documents (updateMany)
                                                                                                                          1. Bulk Update Operations
                                                                                                                            1. Performance Considerations
                                                                                                                              1. Atomic Update Guarantees
                                                                                                                              2. Replacing a Document (replaceOne)
                                                                                                                                1. Full Document Replacement
                                                                                                                                  1. Replacement vs Update
                                                                                                                                    1. Use Cases and Limitations
                                                                                                                                    2. Update Operators
                                                                                                                                      1. Field Update Operators
                                                                                                                                        1. $set (Set Field Value)
                                                                                                                                          1. $unset (Remove Field)
                                                                                                                                            1. $inc (Increment Numeric Value)
                                                                                                                                              1. $mul (Multiply Numeric Value)
                                                                                                                                                1. $rename (Rename Field)
                                                                                                                                                  1. $min (Update if Less Than)
                                                                                                                                                    1. $max (Update if Greater Than)
                                                                                                                                                      1. $currentDate (Set Current Date)
                                                                                                                                                      2. Array Update Operators
                                                                                                                                                        1. $push (Add Element to Array)
                                                                                                                                                          1. $pull (Remove Elements from Array)
                                                                                                                                                            1. $pop (Remove First or Last Element)
                                                                                                                                                              1. $addToSet (Add Unique Element)
                                                                                                                                                                1. $pullAll (Remove Multiple Elements)
                                                                                                                                                                  1. $each (Modify Multiple Array Elements)
                                                                                                                                                                    1. $slice (Limit Array Size)
                                                                                                                                                                      1. $sort (Sort Array Elements)
                                                                                                                                                                      2. Positional Operators
                                                                                                                                                                        1. $ (Positional Operator)
                                                                                                                                                                          1. $[] (All Positional Operator)
                                                                                                                                                                            1. $[identifier] (Filtered Positional)
                                                                                                                                                                          2. Upsert Operations
                                                                                                                                                                            1. Upsert Behavior and Logic
                                                                                                                                                                              1. Use Cases and Applications
                                                                                                                                                                                1. Performance Implications
                                                                                                                                                                                2. Update Performance Optimization
                                                                                                                                                                                  1. Index Usage in Updates
                                                                                                                                                                                    1. Bulk Update Strategies
                                                                                                                                                                                      1. Write Concern Considerations
                                                                                                                                                                                    2. Delete Operations
                                                                                                                                                                                      1. Deleting a Single Document (deleteOne)
                                                                                                                                                                                        1. Delete Syntax and Options
                                                                                                                                                                                          1. Filter Criteria
                                                                                                                                                                                            1. Return Value Analysis
                                                                                                                                                                                            2. Deleting Multiple Documents (deleteMany)
                                                                                                                                                                                              1. Bulk Delete Operations
                                                                                                                                                                                                1. Performance Considerations
                                                                                                                                                                                                  1. Cascading Delete Strategies
                                                                                                                                                                                                  2. Delete Operation Considerations
                                                                                                                                                                                                    1. Referential Integrity
                                                                                                                                                                                                      1. Orphaned Document Handling
                                                                                                                                                                                                        1. Soft Delete Patterns

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                                                                                                                                                                                                    3. The MongoDB Data Model

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                                                                                                                                                                                                    5. Indexing for Performance