Oracle SQL for beginners (and advanced users) («OSQLEI»)

In this workshop, we will teach you the basics of Oracle SQL. The workshop offers sufficient space for exercises in which the newly acquired knowledge can be implemented or existing knowledge can be deepened. The topics range from the syntax of simple statements to the various joins and subqueries to more specialized topics such as analytical functions, hierarchical queries and regular expressions in SQL.

Oracle SQL Workshop Basics

1 SQL – History

2 NULL

3 Syntax of the SELECT statement

• SELECT FROM
• SELECT DISTINCT FROM
• WHERE and comparison operators
• Arithmetic and string operators
• AND, OR and NOT
• ORDER BY
• The table DUAL
• ROWNUM

4 SQL functions

• Numeric, string, converter, date and time
• Comparison functions, LOBs and collections, hierarchical functions
• Data Mining, XML and JSON
• Encoding & Decoding
• Environment - USER
• DECODE and CASE

5 GROUP BY, group functions and HAVING

6 Set operations - UNION, UNION ALL, INTERSECT and MINUS

7 DML (INSERT, UPDATE and DELETE)

8 Transactions - COMMIT, ROLLBACK, SAVEPOINT, SET TRANSACTION and read consistency

9 The Data Dictionary

10 Constraints - Primary, Unique and Foreign Key Constraints

11 ROWIDs and Indexes - Index Types, Administration and Reorganization

12 Joins

• Old Oracle Join Syntax
• INNER, CROSS, OUTER and NATURAL Joins
• Self-Joins

13 Subqueries

• Synchronous and Asynchronous Queries
• Inlay Views
• EXISTS and NOT EXISTS, ANY and ALL
• WITH

Oracle SQL Workshop for Advanced SQL

1 Data Types in Detail

2 GROUP BY – Extensions ROLLUP, CUBE and GROUPING

3 Analytical Functions

• RANK, DENSE_RANK
• PERCENT_RANK, NTILE
• LISTAGG, LEAD and LAG
• FIRST and LAST VALUE
• PARTITION BY

4 Top-N and the SQL ROW LIMIT Clause

5 Data Definition Language (DDL): Tables, Sequences, Views

• Column DEFAULT
• INVISIBLE Columns
• Virtual Columns
• Deferred Segment Creation
• ALTER, TRUNCATE, DROP, RENAME
• CREATE OR REPLACE

6 Hierarchical Queries – START WITH and CONNECT BY, LEVEL and PRIOR

7 Advanced DML

• INSERT ALL, INSERT FIRST
• INSERT APPEND
• MERGE

8 Regular Expressions

• REGEXP_LIKE
• REGEXP_SUBSTR
• REGEXP_REPLACE
• REGEXP_COUNT

Consists of the following modules

• Oracle SQL Workshop Basics («OSQLGR»)
• Oracle SQL Workshop for advanced users (Advanced SQL) («OSQLAD»)

The workshop is designed for 5 days and consists of two parts:

• Oracle SQL Workshop Basics (3 days)
• Oracle SQL Workshop for Advanced Users (2 days)

Prospective Oracle database administrators, application administrators, Oracle developers or architects, generally anyone who comes into contact with SQL.

• This course is suitable for newcomers and does not require any previous knowledge.
• Programming skills are not required, but are helpful.

The course does not require a specific Oracle version. For newer features (from 12.2), the version from which they are available is indicated separately.