From Serebra Learning Corporation
Intermediate COBOL 
This course continues from the
Basic COBOL course and extends the student's knowledge of
COBOL programming in both volume and depth. The course begins by thoroughly describing the seven major sections within the
DATA DIVISION and the purpose of each. The student learns many of the more subtle ways to define and store data. All the major clauses available in a data description item are discussed
more...
From 123-CBT Computer Based Training
Oracle9i SQL Data Retrieval Techniques 

This course covers joins, group functions, subqueries, and the iSQL*Plus report variables. Additionally, this course shows students how to access data from multiple table using joins, aggregate data using group functions, create subqueries, and use iSQL*Plus commands to create customized queries. Learn To: o
Identify the four
Oracle join types used to display data from more than one table. o
more...
SQL and PL SQL Data Retrieval Techniques 

... multiple tables by using an equijoin, a non-equijoin, an outer join, and a self join. Write
SQL statements that contain common group functions. Restrict groups of rows retrieved by using the
HAVING clause and to write SQL statements that contain common group functions. Group rows retrieved by using the
GROUP BY clause. Write single-row, multiple row, multiple-column subqueries.
more...