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コース概要
Limiting results
- The WHERE clause
- Comparison operators
- LIKE Condition
- Prerequisite BETWEEN ... AND
- IS NULL condition
- Condition IN
- Boolean operators AND, OR and NOT
- Many of the conditions in the WHERE clause
- The order of the operators.
- DISTINCT clause
SQL functions
- The differences between the functions of one and multilines
- Features text, numeric, date,
- Explicit and implicit conversion
- Conversion functions
- Nesting functions
- Viewing the performance of the functions - dual table
- Getting the current date function SYSDATE
- Handling of NULL values
Aggregating data using the grouping function
- Grouping functions
- How grouping functions treat NULL values
- Create groups of data - the GROUP BY clause
- Grouping multiple columns
- Limiting the function result grouping - the HAVING clause
Subqueries
- Place subqueries in the SELECT command
- Subqueries single and multi-lineage
- Operators Subqueries single-line
- Features grouping in subquery
- Operators Subqueries multi-IN, ALL, ANY
- How NULL values are treated in subqueries
Operators collective
- UNION operator
- UNION ALL operator
- INTERSECT operator
- MINUS operator
Further Usage Of Joins
- Revisit Joins
- Combining Inner and Outer Joins
- Partitioned Outer Joins
- Hierarchical Queries
Further Usage Of Sub-Queries
- Revisit sub-queries
- Use of sub-queries as virtual tables/inline views and columns
- Use of the WITH construction
- Combining sub-queries and joins
Analytics functions
- OVER clause
- Partition Clause
- Windowing Clause
- Rank, Lead, Lag, First, Last functions
Retrieving data from multiple tables (if time at end)
- Types of connectors
- The use NATURAL JOIN
- Aliases tables
- Joins in the WHERE clause
- INNER JOIN
- External Merge LEFT, RIGHT, FULL OUTER JOIN
- Cartesian product
Aggregate Functions (if time at end)
- Revisit Group By function and Having clause
- Group and Rollup
- Group and Cube
要求
Recommended attendance on the "Oracle SQL for Beginners" training course
14 時間
お客様の声 (5)
The topic was interesting, and the trainer was very friendly and has adept knowledge of the subject.
Jacqueline - Tribal Grou[
コース - Developing Applications with Oracle Application Express (APEX)
how the trainor shows his knowledge in the subject he's teachign
john ernesto ii fernandez - Philippine AXA Life Insurance Corporation
コース - Data Vault: Building a Scalable Data Warehouse
内容は非常に興味深かったので、大学最後の年に役立つと思いました。
Krishan - NBrown Group
コース - From Data to Decision with Big Data and Predictive Analytics
Machine Translated
I enjoyed the good real world examples, reviews of existing reports.
Ronald Parrish
コース - Data Visualization
Very tailored to needs.
