dashDB SQL for Subqueries, Functions, Procedures, and Performance - eLearning - K04009G

Beschreibung

Note: Guided eLearning is a self-paced offering which includes web-based content for self-study and videos (including audio) that demonstrate activities.

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1.Using Subqueries
Subquery in a basic predicate
Subquery with IN predicate
Subquery with a NOT IN predicate
Subquery with ORDER BY
Subquery with ALL predicate
Subquery with ANY or SOME predicate
Subquery with EXISTS predicate
Activity
SQL challenges
2. Using correlated subqueries
Correlated subquery with an EXISTS predicate
Scalar fullselect as a correlated subquery
Update statement including a subquery
Activity
SQL Challenges
3. Scalar functions (other than DATE/TIME functions)
Scalar function SUBSTR substring
Scalar function POSSTR string position
Scalar function COALESCE/VALUE
Scalar function DECIMAL
Scalar function ROUND
Scalar function DIGITS
Scalar function SQRT and POWER
Scalar function CHAR with arguments other than date/time
Scalar function LENGTH
Scalar functions LTRIM/RTRIM Left TRIM/Right Trim
Activity
SQL challenges
4. Scalar functions DATE/TIME functions
DATE, TIME, and TIMESTAMP formats
Scalar function CHAR with date/time arguments
Scalar functions date related (part 1)
Scalar functions date related (part 2)
Scalar functions time related
Labelled DATE/TIME durations
Activity
SQL challenges
5. Table expressions
Nested table expressions
Nested table expressions in Joins
Common table expressions (CTEs)
SQL challenges
6. Recursive SQL
SQL challenges
7. Introduction to UDTs, UDFs, and stored procedures
User-defined distinct Types (UDTs)
User-defined functions (UDFs)
Sourced user-defined functions
External user-defined functions
User-defined SQL functions
User-defined stored procedures
Activity
SQL challenges
8. SQL and dashDB performance
Note on indexes
dashDB optimizer
Index overview
Clustered and non-clustered indexes
Index utilization
Predicate processing
General guidelines correlated subqueries
General guidelines minimize dashDB sorts
General guidelines view usage
General guidelines expressions
General guidelines NOT EQUAL predicates
General guidelines arithmetic
General guidelines conversion
General guidelines retrieve only necessary data
Monitor the SQL workload and use the EXPLAIN facility
SQL challenges

Ziel

Please refer to course overview

Anforderungen an die Teilnehmer

dashDB SQL for Basic Queries (K04001)
dashDB SQL for tables, views, advanced queries, and analytic constructs (K04004)
Or equivalent experience or knowledge

Teilnehmer

This course is intended for Developers, Database Administrators, and System Programmers who require further insight into the SQL language.