Skip to main content

How to use DDL or DML within PL/SQL Block

SET SERVEROUTPUT ON
DECLARE 
  TBSTMT VARCHAR2(2000):='CREATE TABLE DEMO (ID NUMBER,MSG VARCHAR2(20))';
BEGIN
  EXECUTE IMMEDIATE TBSTMT;
END;

Comments

  1. You can create/drop tables in PL/SQL block with Execute immediate command
    actually any programming language follows pre/post validations for host variable
    here pre checking wl be done,so at the time of compilation we have to submit all host variables,but we can't with ddl stms,so where ever we keep Execute immediate stmt that stmt wl be validate at runtime only.
    this is nothing but Dynamic SQL.previously we are using in-built pakage ,now execute immediate command .

    ReplyDelete

Post a Comment

Popular posts from this blog

Sample : String Reverse In Java

import java.io.*; class test {     public static void main(String args[])     {         DataInputStream in=new DataInputStream(System.in);         try         {             String text;             System.out.println("\nEnter The Text");             text=in.readLine();             System.out.println("\nIn Reverse Order::\n");             for(int i=text.length()-1;i>=0;i--)             {                 System.out.print(text.charAt(i));             }          ...

Using GREP in UNIX

How To Use grep Command In Linux / UNIX by  VIVEK GITE  on  AUGUST 2, 2007  ·  147 COMMENTS H ow do I use grep command in Linux? grep command searches the given file for lines containing a match to the given strings or words. By default, grep prints the matching lines. Use grep to search for lines of text that match one or many regular expressions, and outputs only the matching lines. The name, "grep", derives from the command used to perform a similar operation, using the Unix/Linux text editor ed: g/re/p grep command syntax grep 'word' filename grep 'string1 string2' filename cat otherfile | grep 'something' command | grep 'something' Use grep to search file Search /etc/passwd for boo user: $ grep boo /etc/passwd You can force grep to ignore word case i.e match boo, Boo, BOO and all other combination with -i option: $ grep -i "boo" /etc/passwd Use grep recursively You can search recursively i.e. read all files under each ...