Simple SQLPLUS formatting

> SQL Prompt>SET SQLPROMPT "My SQL Prompt>"
> My SQL Prompt>SET COLSEP "|"
> My SQL Prompt>SET UNDERLINE "-"
> My SQL Prompt>SET LINESIZE 2000
> My SQL Prompt>SET PAGESIZE 1000
> My SQL Prompt>Select tbl2.*
> 2 From (Select *
> 3 From (Select 1 a,
> 4 2 b,
> 5 3 c,
> 6 4 d,
> 7 5 e
> 8 From DUAL) tbl1) tbl2
> 9 Where a=b-1;
>
> A| B| C| D| E
> ---------|---------|---------|---------|---------
> 1| 2| 3| 4| 5
>
> 1 row selected.
>

Comments

Editor's Column - Traditional DBMS

Editor's column There were days when Rooms-sized processors used for processing data. IT boomed up at the start of 21st Century and so many innumerable inventions made Computer world and few among them are still up in the markets for thier better implemented programming Alogrithms which couples with computer hardware and software ( OS ). Textpads or notepads were the repository of data and programmers had to be Experts to do data manipulation. In other words, Programmers had to use thier own logic to do insert , delete, update in data source. For instance, Consider the following: file1.txt: 1 I am line number 1 2 I am line number 2 3 I am line number 3 4 I am line number 4 5 I am line number 5 6 I am line number 6 7 I am line number 7 8 I am line number 8 9 I am line number 9 10 I am line number 10 To programmatically delete 8 th record , developer had to use the following logic with OLD file handling methods in 3rd generation language. 1. Open file1.txt, an...

Only native data types are supported in PLSQL programming

create or replace package check1 is procedure p1(a1 integer); procedure p1(a1 number); end check1; / create or replace package body check1 is procedure p1(a1 integer) as begin dbms_output.put_line('Using Integer'); end p1; procedure p1(a1 number) as begin dbms_output.put_line('Using Number'); end p1; end; / --The above code gets compiled successfully. --But when you try to execute it .. begin check1.p1(8779); end; --See what happens.............. This concludes ONLY different native datatypes can be used in PLSQL OO implementation. Happy learning!!!!!

PLSQL programming ( Learn by examples - Part 3 )

/** In this section , lets learn the following. How to use a for loop to process multiple records... **/ set serveroutput on size 100000 begin --Select objects of table type that are valid under the schema Susil for var in (Select * from all_objects where object_name not like '%$%' and object_name in ('EMPLOYEE','EMP') and status='VALID' and owner='SUSIL') loop if var.object_type='TABLE' then /* Dbms_metadata package provides us a function get_ddl to get the data definition on object. For your understanding , i have just chosen two tables in this example If you remove Object_name condition in the above SQL , it will print DDL definitions for all tables under the specified schema **/ dbms_output.put_line('====================================================================='); dbms_output.put_line('Table name =>'||var.objec...

SQL ,PLSQL , Unix

Search This Blog