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

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Beschrijving

Overview

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

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

Objectives

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 subq…

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Veelgestelde vragen

Er zijn nog geen veelgestelde vragen over dit product. Als je een vraag hebt, neem dan contact op met onze klantenservice.

Nog niet gevonden wat je zocht? Bekijk deze onderwerpen: dashDB, SQL, Datawarehouse, Microsoft SQL Server en MySQL.

Overview

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

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

Objectives

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  

Content

Please refer to course overview

PreRequisites

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

Furtherinfo

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

Blijf op de hoogte van nieuwe ervaringen

Er zijn nog geen ervaringen.
  • Vraag informatie aan over deze cursus. Je ontvangt vanaf dan ook een seintje wanneer iemand een ervaring deelt. Handige manier om jezelf eraan te herinneren dat je wilt blijven leren!
  • Bekijk gerelateerde producten mét ervaringen: dashDB en SQL.

Deel je ervaring

Heb je ervaring met deze cursus? Deel je ervaring en help anderen kiezen. Als dank voor de moeite doneert Springest € 1,- aan Stichting Edukans.

Er zijn nog geen veelgestelde vragen over dit product. Als je een vraag hebt, neem dan contact op met onze klantenservice.

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