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DB2 SQL Workshop for Experienced Users (CE130) Contenu détaillé |
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- Identify the purpose of the clauses in the SELECT statement
- Describe the key differences among the IBM DB2 platforms
- Describe and use some of the OLAP features of DB2, such as GROUPING functions like CUBE and ROLLUP, and the RANK, DENSE_RANK and ROW_NUMBER functions
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- Code statements to: Create tables and views, Alter tables, Create indexes, Implement referential integrity (RI), and Define triggers and check constraints
- Identify impacts and advantages of referential integrity, including impacts of delete rules
- Identify considerations when using triggers and check constraints
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- Retrieve data from more than one table via inner and outer joins
- Use outer joins
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| CASE, CAST, Summary Tables, and Materialized Query Tables | - Identify when CASE expressions can be used
- Code CASE expressions in SELECT list and in the WHERE clause
- Identify when CAST specifications can be used
- Identify the advantages of using Summary (Materialized Query) Tables and Temporary tables
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- Code subqueries using the ALL, ANY/SOME, and EXISTS keywords
- Code correlated subqueries
- Choose the proper type of subquery to use in each case
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- Extend your knowledge of scalar functions which: Manipulate arithmetic data, Manipulate date values, and Manipulate character data
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| Table Expressions and Recursive SQL | - Identify reasons for using table expressions and recursive SQL
- Use nested and common table expressions
- Identify the difference between views and table expressions
- Code recursive SQL
- Control the depth of recursion when coding recursive SQL
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| UDTs/UDFs and Performance | - Describe the concepts behind User-Defined Types, User-Defined Functions and Stored Procedures
- Predict when queries will use indexes to get better performance
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- Welcome
- Unit 1 - Introduction (SQL Basics review, and OLAP features)
- Exercise 1
- Unit 2 - Create Objects
- Exercise 2
- Unit 3 - Join
- Exercise 3
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- Unit 4 - CASE, CAST, Summary Tables, and MQTs
- Exercise 4
- Unit 5 - Using Subqueries
- Exercise 5
- Unit 6 - Scalar Functions
- Exercise 6
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- Unit 7 - Table Expressions and Recursive SQL
- Exercise 7
- Unit 8 - UDTs/UDFs and Performance
- Exercise 8
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