A pl/sql is a named pl/sql block
PL/SQL BLOCKS Learn about PL/SQL Blocks, Structure and Syntax with examples including Nested Block and Anonymous Block in Oracle Data base. Show
PL/SQL block is a logical collection of procedural as well as non procedural statements. Here is what procedural / Non procedural statements are. Procedural Statements – All non SQL statements are procedural. PL/SQL Blocks Structure Approach
PL/SQL Blocks Syntax
Brief about block structure partsDeclarative Part:
Executable Part.
Exception Handling Part:
NOTES:
PL/SQL Blocks Types
Anonymous Blocks
Named Blocks
Example programs for Anonymous BlocksA simple PL/SQL Block ExampleExample:
Output hello world PL SQL NESTED BLOCKS
Nested PL/SQL Blocks Syntax:
Nested Block Example
Output: I am Going to School Some simple example without declaration of blocks.Example 1
Some simple example with declaration of blocks.Example 3
MORE TOPICS ON PL-SQL BLOCKSLABELED BLOCK
Labeled Block Syntax:
Labeled Nested Block Syntax:
Example Program
OUTPUT THE VALUE OF m =30 NOTES:
NESTED BLOCKS AND VARIABLE SCOPEPrerequisite: Variables in PL SQL Scope of a variable means lifetime of the variable that exists in the PL/SQL Block. Once PL/SQL Block complete its execution, the life time of the variable is lost and space is released. What is named block in PL SQL?2. Named blocks: That's PL/SQL blocks which having header or labels are known as Named blocks. These blocks can either be subprograms like functions, procedures, packages or Triggers.
What is PL SQL block in Oracle?The basic unit of a PL/SQL source program is the block, which groups related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part.
What is PL SQL block structure?A PL/SQL block is defined by the keywords DECLARE , BEGIN , EXCEPTION , and END . These keywords partition the block into a declarative part, an executable part, and an exception-handling part. Only the executable part is required.
What are the three PL SQL block types?As Figure 1-1 shows, a PL/SQL block has three parts: a declarative part, an executable part, and an exception-handling part. (In PL/SQL, a warning or error condition is called an exception.)
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