Examples of Integer and Real Literals : Introduction « PL SQL Programming « Oracle PL/SQL Tutorial






SQL>
SQL>
SQL> declare
  2      v_int1 BINARY_INTEGER :=5;  -- integer
  3      v_int2 BINARY_INTEGER :=-5; -- integer
  4      v_int3 BINARY_INTEGER :=0;  -- integer
  5      v_int4 BINARY_INTEGER :=+5; -- integer
  6
  7      v_real1 NUMBER :=1.0;       -- real
  8      v_real2 NUMBER :=1.;        -- real
  9      v_real3 NUMBER :=-7.113;    -- real
 10      v_real4 NUMBER :=0.2;       -- real
 11      v_real5 NUMBER :=.3;        -- real
 12      v_real6 NUMBER :=0.1;       -- real
 13      v_real7 NUMBER :=2/6;       -- real
 14  begin
 15     NULL;
 16  end;
 17  /

PL/SQL procedure successfully completed.

SQL>








24.1.Introduction
24.1.1.Writing a simple program
24.1.2.Each complete line of the PL/SQL code must end with a semicolon (;).
24.1.3.Anonymous Block Structure
24.1.4.An example of an anonymous block.
24.1.5.Anonymous blocks can be nested in the procedure and exception blocks in as many levels as you want
24.1.6.The Lexical Set of Elements
24.1.7.Delimiters
24.1.8.Comments
24.1.9.Multi-line comments start with /* and end with */.
24.1.10.Declaring variables
24.1.11.Declaring a Variable by Reference
24.1.12.There are some restrictions on the declaration of variables:
24.1.13.Assigning values to variables
24.1.14.Assign SQL query results to PL/SQL variables
24.1.15.Literals as variable values
24.1.16.Examples of Integer and Real Literals
24.1.17.Numeric literals cannot contain dollar signs or commas, but they can be written in scientific notation
24.1.18.Character and string literals in the Oracle world are enclosed by single quotes