Ireth Anarion's Blog - Code snippets

SQL – Find all tables in the MS SQL Server DataBase that are missing specific column

irethanarion — Thu, 06 Aug 2009 07:08:51 +0000

select t.TABLE_CATALOG, t.TABLE_NAME, c.COLUMN_NAME from INFORMATION_SCHEMA.TABLES t

left outer join INFORMATION_SCHEMA.COLUMNS c on t.TABLE_NAME = c.TABLE_NAME and c.COLUMN_NAME = ‘myColumn’

and c.COLUMN_NAME is null

Example SQL select, that lists all tables in the database, which are missing some specific column ( in this example – column named ‘myColumn’.

select t.TABLE_CATALOG, t.TABLE_NAME, c.COLUMN_NAME from INFORMATION_SCHEMA.TABLES  t

left outer  join INFORMATION_SCHEMA.COLUMNS c on t.TABLE_NAME = c.TABLE_NAME and c.COLUMN_NAME = 'myColumn'

and c.COLUMN_NAME is null

SQL – Find all tables in the MS SQL Server DataBase with searched column

irethanarion — Thu, 06 Aug 2009 07:03:40 +0000

select t.TABLE_CATALOG, t.TABLE_NAME, c.COLUMN_NAME, c.IS_NULLABLE, c.DATA_TYPE from INFORMATION_SCHEMA.TABLES t

inner join INFORMATION_SCHEMA.COLUMNS c on t.TABLE_NAME = c.TABLE_NAME and c.COLUMN_NAME = ‘SearchedColumnName’

and c.COLUMN_NAME is not null

Simple sql select, which result contains all tables in the database, that have specific, searched column.

This example lists all tables that have column named ‘myColumn’.

select t.TABLE_CATALOG, t.TABLE_NAME, c.COLUMN_NAME, c.IS_NULLABLE, c.DATA_TYPE
from INFORMATION_SCHEMA.TABLES  t
inner  join INFORMATION_SCHEMA.COLUMNS c
on t.TABLE_NAME = c.TABLE_NAME and c.COLUMN_NAME = 'myColumn'

SQL – Find list of all tables in MS SQL Server Database

irethanarion — Thu, 06 Aug 2009 06:57:53 +0000

select distinct t.TABLE_CATALOG, t.TABLE_NAME
from INFORMATION_SCHEMA.TABLES  t
left outer  join INFORMATION_SCHEMA.COLUMNS c
on t.TABLE_NAME = c.TABLE_NAME

select distinct TABLE_CATALOG, TABLE_NAME
from INFORMATION_SCHEMA.TABLES

JSF – Simple Progress Bar Example

irethanarion — Thu, 30 Jul 2009 06:43:26 +0000

JavaScript function:

function startProgressBar(progBarId, progBarMsg){
       hX.getComponentById(progBarId).start(progBarMsg);
}

JSP Code Snippet:

<%–The progress bar –%>




<%–Button –%>

USEFUL LINK

JavaScript – compare two dates, validate date range

irethanarion — Wed, 29 Jul 2009 09:32:29 +0000

function validateDateRange(date1Id, date2tId, errMsg){
   date1 = document.getElementById(date1Id).value;
   date2 = document.getElementById(date2Id).value;
   //alert(date1 + '<>' + date2);
   if(date1 != null && date2 != null){
      if (Date.parse(date1) > Date.parse(date2)) {
           document.getElementById(date2Id).value = date1;
           alert(errMsg);
           return false;
      }
  }
  return true;
}

Get values using parameter passing with JSF and AJAX

irethanarion — Wed, 15 Jul 2009 11:22:54 +0000

EXAMPLE JSP:

JSP File:

<%– jsf:pagecode language=“java“ location=“/src/pagecode/cpc/jsf/bp/contextFilters/CtxFilterDocuments.java“ –%><%– /jsf:pagecode –%><%@ page

language=“java“ contentType=“text/html; charset=UTF-8″

pageEncoding=“UTF-8″%><%@ taglib prefix=“f“

uri=“http://java.sun.com/jsf/core“%>

<%@ taglib prefix=“h“ uri=“http://java.sun.com/jsf/html“%>

<%@taglib uri=“http://www.ibm.com/jsf/html_extended“ prefix=“hx“%>

Insert title here

layout=“pageDirection“ border=“0″ cellpadding=“0″ cellspacing=“0″>

layout=“lineDirection“ align=“left“ valign=“top“ cellpadding=“0″

cellspacing=“0″>

params=“prmDocsRegId;prmDocsRegNum“>

layout=“lineDirection“ cellpadding=“0″ cellspacing=“0″>

styleClass=“commandExButton“ id=“btnSearchDocsDialog“>

id=“bhv_btnSearchDocsDialog“ targetAction=“boxDocsResults“>

layout=“pageDirection“ cellpadding=“0″ cellspacing=“0″>

<%– jsf:pagecode language=“java“ location=“/src/pagecode/cpc/jsf/bp/contextFilters/CtxFilterDocuments.java“ –%><%– /jsf:pagecode –%><%@ page

language=“java“ contentType=“text/html; charset=UTF-8″

pageEncoding=“UTF-8″%><%@ taglib prefix=“f“

uri=“http://java.sun.com/jsf/core“%>

<%@ taglib prefix=“h“ uri=“http://java.sun.com/jsf/html“%>

<%@taglib uri=“http://www.ibm.com/jsf/html_extended“ prefix=“hx“%>

Insert title here

layout=“pageDirection“ border=“0″ cellpadding=“0″ cellspacing=“0″>

layout=“lineDirection“ align=“left“ valign=“top“ cellpadding=“0″

cellspacing=“0″>

params=“prmDocsRegId;prmDocsRegNum“>

layout=“lineDirection“ cellpadding=“0″ cellspacing=“0″>

styleClass=“commandExButton“ id=“btnSearchDocsDialog“>

id=“bhv_btnSearchDocsDialog“ targetAction=“boxDocsResults“>

layout=“pageDirection“ cellpadding=“0″ cellspacing=“0″>

JAVA CLASS:

public class MBSearchedResults{

Map ctxMap;

private String prm1;

private String prm2;

public MBSearchedResults() {

super();

this.ctxMap = FacesContext.getCurrentInstance().getExternalContext()

.getRequestParameterMap();

}

public String getPrm1(){

// Взимаме си параметрите

String pprmDocsRegId = this.ctxMap.get(„prmDocsRegId“);

if (pprmDocsRegId != null) {

this.prm1 = pprmDocsRegId;

}

return this.prm1;

}

public String getPrm2(){

String pprmDocsRegNum = this.ctxMap.get(„prmDocsRegNum“);

if (pprmDocsRegNum != null) {

this.prm2 = pprmDocsRegNum;

}

return this.prm2;

}

Java – Another enumeration example

irethanarion — Wed, 15 Jul 2009 10:18:50 +0000


public enum MapNomValues {
ref_type_1("sysNameRefType1", "name1"),
ref_type_2("sysNameRefType2", "name2"),
ref_type_3("sysNameRefType3", "name3");
private String sysName;
private String name;
private MapNomValues(String sysName, String name) {
this.sysName = sysName;
this.name = name;
}
private MapNomValues(String value) {
this.sysName = value;
}
public String getSysName() {
return this.sysName;
}
public String getName() {
return this.name;
}
}

Results:
ref_type_1.getName(); returns -> name1
ref_type_1.getSysName(); returns -> sysNameRefType1

Java – Clone objects – example

irethanarion — Wed, 15 Jul 2009 07:55:38 +0000

For objects cloning, you can use java.lang.Cloneable. It is not applicable for deep cloning (for deep cloning use Serialization), because you should control the overall clone process, but it works for simple cloning in most cases.
To use clone() method, you should implement java.lang.Cloneable and override clone(), because it is not visible. There is an example:

public abstract class Criteria implements Cloneable {

Criteria() {

super();

}

@Override
public Object clone() {

try {

return super.clone();

} catch (CloneNotSupportedException e) {

e.printStackTrace();
return null;

}

Java – Scanner example

irethanarion — Wed, 08 Jul 2009 13:42:20 +0000

package com.xxxxx.tests;

import java.util.Scanner;

public class ScannerExample{

/**

* @param args

public static void main(String[] args){

Scanner scan = new Scanner(System.in);

System.out.println(„Write smthng: „);

String a = scan.next();

System.out.println(„Smthng: “ + a);

}

JSF – IBM DatePicker, choose first day of the week – example

irethanarion — Wed, 08 Jul 2009 13:16:11 +0000

Ако искате първият ден от седмицата в календара ви да е понеделник просто трябва да добавите /firstDay=“1″/.

styleClass=“inputText“

value=“#{mBean.dateRealBegin}“>