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Oracle Database: Introduction to SQL (DB-INTRO-SQL)培訓(xùn)
 
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課程大綱
 
  • 1. Introduction to Oracle Database
    Features of Oracle Database 11g
    Basic design, theoretical, and physical aspects of a relational database
    Categorize the different types of SQL statements
    Data set used by the course
    Log on to the database using SQL Developer environment
    Save queries to files and use script files in SQL Developer
    2. Retrieve Data using the SQL SELECT Statement
    Capabilities of SQL SELECT statements
    Generate a report of data from the output of a basic SELECT statement
    Select all columns
    Select specific columns
    Use column heading defaults
    Use arithmetic operators
    Operator precedence
    DESCRIBE command to display the table structure
    3. Learn to Restrict and Sort Data
    Write queries that contain a WHERE clause to limit the output retrieved
    Comparison operators and logical operators that are used in a WHERE clause
    Rules of precedence for comparison and logical operators
    Use character string literals in the WHERE clause
    Write queries that contain an ORDER BY clause to sort the output of a SELECT statement
    Sort output in descending and ascending order
    4. Usage of Single-Row Functions to Customize Output
    Differences between single row and multiple row functions
    Manipulate strings with character function in the SELECT and WHERE clauses
    Manipulate numbers with the ROUND, TRUNC, and MOD functions
    Perform arithmetic with date data
    Manipulate dates with the DATE functions
    5. Invoke Conversion Functions and Conditional Expressions
    Implicit and explicit data type conversion
    Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
    Nest multiple functions
    Apply the NVL, NULLIF, and COALESCE functions to data
    Use conditional IF THEN ELSE logic in a SELECT statement
    6. Aggregate Data Using the Group Functions
    Use the aggregation functions to produce meaningful reports
    Divide the retrieved data in groups by using the GROUP BY clause
    Exclude groups of data by using the HAVING clause
    7. Display Data from Multiple Tables Using Joins
    Write SELECT statements to access data from more than one table
    View data that generally does not meet a join condition by using outer joins
    Join a table to itself by using a self join
    8. Use Subqueries to Solve Queries
    Types of problems that subqueries can solve
    Subqueries
    Types of subqueries
    Write single-row and multiple-row subqueries
    9. The SET Operators
    SET operators
 
  備案號:備案號:滬ICP備08026168號-1 .(2024年07月24日)....................
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