SQL / Subject
Intermediate
Build intermediate SQL skills with joins, set operations, subqueries, conditional expressions, functions, dates, views, indexes, data modeling, normalization and transactions.
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Learning Summary
Suggested sequence
Learning roadmap
Topics follow the Admin display order
Intermediate
127 topics- Introduction to Joins
- INNER JOIN
- LEFT JOIN
- RIGHT JOIN
- FULL OUTER JOIN
- CROSS JOIN
- SELF JOIN
- Natural Join
- Equi Join
- Non-Equi Join
- Multiple Table Joins
- Joining Three or More Tables
- UNION
- UNION ALL
- INTERSECT
- EXCEPT
- MINUS
- Introduction to Subqueries
- Single-Row Subqueries
- Multiple-Row Subqueries
- Multiple-Column Subqueries
- Nested Subqueries
- Correlated Subqueries
- Scalar Subqueries
- Subqueries in SELECT
- Subqueries in WHERE
- Subqueries in FROM
- EXISTS Subqueries
- NOT EXISTS Subqueries
- CASE
- Simple CASE
- Searched CASE
- Nested CASE
- COALESCE
- NULLIF
- IFNULL
- ISNULL
- NVL
- CONCAT
- CONCAT_WS
- SUBSTRING
- SUBSTR
- LENGTH
- CHAR_LENGTH
- LOWER
- UPPER
- TRIM
- LTRIM
- RTRIM
- REPLACE
- REVERSE
- LEFT
- RIGHT
- POSITION
- INSTR
- LOCATE
- ABS
- CEIL
- CEILING
- FLOOR
- ROUND
- TRUNCATE
- MOD
- POWER
- SQRT
- RANDOM
- RAND
- Current Date
- Current Time
- Current Timestamp
- Date Extraction
- Date Addition
- Date Subtraction
- Date Difference
- Date Formatting
- Date Parsing
- Time Zones
- Date Comparisons
- CAST
- CONVERT
- Type Conversion
- Implicit Conversion
- Explicit Conversion
- Introduction to Views
- Creating Views
- Updating Views
- Replacing Views
- Dropping Views
- Simple Views
- Complex Views
- Updatable Views
- Read-Only Views
- Introduction to Indexes
- Creating Indexes
- Dropping Indexes
- Unique Indexes
- Composite Indexes
- Clustered Indexes
- Non-Clustered Indexes
- Index Selection
- Database Modeling
- Entity Relationship Model
- ER Diagrams
- Entities
- Attributes
- Relationships
- Cardinality
- Participation Constraints
- Logical Database Design
- Physical Database Design
- Database Normalization
- Functional Dependencies
- First Normal Form
- Second Normal Form
- Third Normal Form
- Boyce-Codd Normal Form
- Fourth Normal Form
- Fifth Normal Form
- Denormalization
- Transactions
- ACID Properties
- COMMIT
- ROLLBACK
- SAVEPOINT
- Transaction States
- Transaction Isolation
- Autocommit
Topics
127 published topics
- 61 ROUNDLearn ROUND through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 62 TRUNCATELearn TRUNCATE through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 63 MODLearn MOD through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 64 POWERLearn POWER through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 65 SQRTLearn SQRT through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 66 RANDOMLearn RANDOM through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 67 RANDLearn RAND through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 68 Current DateLearn Current Date through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 69 Current TimeLearn Current Time through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 70 Current TimestampLearn Current Timestamp through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 71 Date ExtractionLearn Date Extraction through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 72 Date AdditionLearn Date Addition through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 73 Date SubtractionLearn Date Subtraction through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 74 Date DifferenceLearn Date Difference through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 75 Date FormattingLearn Date Formatting through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 76 Date ParsingLearn Date Parsing through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 77 Time ZonesLearn Time Zones through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 78 Date ComparisonsLearn Date Comparisons through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 79 CASTLearn CAST through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning
- 80 CONVERTLearn CONVERT through a detailed SQL lesson with examples, exercises and practice questions.Intermediate · 16 min read · 120 min learning