Workshop

Digicomp Code OSQLGR

Oracle SQL Workshop Basics («OSQLGR»)

Oracle SQL is the database query language for Oracle databases. Although SQL has been standardized for a long time, there are some special features in the Oracle environment, both functionally and syntactically.
Duration 3 days
Price 2'950.–
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Course facts

  • Knowing the basic SQL concepts: the syntax of SELECT statements (e.g. `WHERE`, `ORDER BY`, `DUAL`, `ROWNUM`), SQL functions (numeric, string, date/time, `DECODE`, `CASE`), `GROUP BY`, `HAVING` and set operations (`UNION`, `INTERSECT`, `MINUS`)
  • Data Manipulation Language (DML) operations (INSERT, UPDATE, DELETE) and transaction control (COMMIT, ROLLBACK, SAVEPOINT)
  • Understanding the data dictionary, the constraints (Primary, Unique, Foreign Key) and the ROWIDs/indexes
  • Knowledge of different types of joins (INNER, CROSS, OUTER, NATURAL, self-joins) and subqueries (synchronous, asynchronous, inlay views, EXISTS, ANY, ALL, WITH)

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.

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

Component of the following courses

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.

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