Oracle PLSQL Tutorial Introduction 26 codes

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  2. Oracle PLSQL Tutorial
  3. Introduction
1 Define variable and use it in SQL command
2 Do simple calculation by using dual
3 How do you tell the difference between a null value and a blank string if you retrieve all the rows
4 Introducing database normalization
5 Invalid relational operator
6 Larger and equals
7 Less and equals
8 Multiple-line commenting
9 Print
10 The dual Table
11 The normal rules of arithmetic operator precedence apply in SQL
12 Understanding basic database terminology
13 Understanding Null Values
14 Understanding Operator Precedence
15 Use = operator
16 Use = operator (2)
17 Use multi-line comment blocks
18 Use NOT in where clause
19 Use parentheses () to specify the order of execution for the operators
20 Use single line comments
21 Use the AND operator to retrieve rows
22 Use the OR operator to retrieve rows
23 Uses the not equal () operator in the WHERE clause
24 Using Comparison Operators
25 Using the Logical Operators
26 Using the operator