Wednesday, April 11, 2012

Get the current Value from a TextField in extJS !

Get the Current(or the latest) Value from the textField:

var currentValue= Ext.getCmp('expName').value;

Get the value that was initially loaded (or initialized)
var loadedValue=Ext.getCmp('expName').getValue();


On a separate note, You can define a label with a html message into it.
For example :
  {xtype:'label', 
   id:'duplicate_warning_msg',
   html:''Duplicate value detected !', hidden:true 
   }

You can make it visible or hide it with setVisible method as following.
Ext.getCmp('duplicate_warning_msg').setVisible(true);

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Friday, November 18, 2011

Get the the difference between two dates in MS SQL

The DATEDIFF() function returns the difference between two dates
Syntax: DATEDIFF ( datepart , startdate , enddate )

Following is an example for the DateDiff()
DECLARE @startdate datetime ='2011-11-14 02:00:06.957';
DECLARE @enddate datetime = '2011-11-16 05:00:15.490';
SELECT DATEDIFF(day, @startdate, @enddate) as dayDifference,DATEDIFF(HOUR, @startdate, @enddate)as hourDifference
Output

dayDifference hourDifference
2 51


Similarly the following are the available datepart Options on the DateDiff() Function.

year(or yy or yyyy)
quarter(or qq or q)
month (or mm or m )
dayofyear(or dy or y )
day (or dd, d )
week(or wk or ww)

hour(or hh)
minute(or mi or n)
second(or ss or s )
millisecond(or ms)
microsecond(or mcs)
nanosecond(or ns)
TZoffset(or tz)
ISO_WEEK(or isowk or isoww)


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Get the Row Numbers as a separate column on MS SQL Query

I was trying to execute a new query where I need the Row number as a new column on the result itself. I used the SQL Function ROW_NUMBER() to get the row number.
Following query gives the Report Path with the HitCount along with the added Row Number.

select ROW_NUMBER() OVER(ORDER BY count(ReportPath) DESC) AS 'Row Number', ReportPath,count(ReportPath) as HitCount
FROM [ReportServer].[dbo].[ExecutionLog2]
Group by ReportPath
Order by HitCount desc


Cheers !
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Friday, July 8, 2011

Get the Disk Usage Statistics from the WinDirStat !

WinDirStat is an opensource tool to identify howmuch of disk space you are using on your wondow box. It shows disk, file and directory sizes in a treelist as well as graphically in a treemap, much like KDirStat or SequoiaView.

Once i started using it, i feel like life would have been very hard without it.
Why don't you try it yourself.

You can download the tool from http://windirstat.info/

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Wednesday, June 29, 2011

How to parse multi value parameter from SSRS Report !

While writing an SSRS Report, I had to parse a multivalued parameter and stored it on a temp table. After some googling i came up with the following solution. @id is the multi valued parameter that need to be parsed. Following is the sample code that you can used to parse and put the values on a temp table.


-- @uid is the parameter. Lets define the parameter for testing.

declare @uid as nvarchar(200)
set @uid='u01052901,u01052789,u01052897,u0105345,u08023432,u0234324,u23479879'

create table #TempIDTable (
slice varchar(50))
declare @index1 int
declare @u_id nvarchar(4000)
set @index1 = 1
if @uid is null
set @index1 = 0
while @index1 !=0
begin
set @index1 = charindex(',',@uid)
if @index1 !=0
set @u_id = left(@uid,@index1 - 1)
else
set @u_id = @uid
insert into #TempIDTable select @u_id
set @uid= right(@uid,len(@uid) - @index1)
if len(@uid) = 0
break
end

Select * from #TempIDTable
--drop table #TempIDTable

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Friday, June 17, 2011

Date Conversion from YYYY-MM-DD HH:MM:SS:MMM to YYYY-MM-DD 00:00:00:000 !

Just keeping it handy !

declare @StartTime as DateTime
set @StartTime= dateadd(dd,0, datediff(dd,0,'2011-06-08 11:18:26.000'))
select @StartTime as StartTime


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Tuesday, March 23, 2010

Schema Spy, A Graphical Database Schema Metadata Browser.

Schemaspy is a java based tool that analyzes the metadata of a schema in a database and generated the visual representation of it. The output is highly user friendly. You can browse through table via child and parent table relationship.

Schema Spy uses the dot executable from graphviz to generate the graphical representation of the schema and its relationship. Graphviz is the graphics visualization software that takes descriptions of graphs in a simple text language, and make diagrams in several useful formats such as images and SVG for web pages, Postscript for inclusion in PDF or other documents; or display in an interactive graph browser.

Following is the steps to execute the SchemaSpy tool (for a sample MYSQL database.)
1. Download and install Graphviz from http://www.graphviz.org/Download..php
2. Download the Schema spay jar file, Schemaspy_x_y_z.jar from http://sourceforge.net/projects/schemaspy/files/
3. Download the corresponding JDBC Connector and have it on the same source folder where the schemaspy_x_y_z.jar resides. For example for a mysql database, I would simply download mysql-connector-java-5.1.5.jar or any other latest version of mysql connector.
4. Now from the source location of your Schemaspy_x_y_z.jar file, execute schemaspy to generate the graphical representation of the schema of your database, as shown on the following syntax

java -jar schemaSpy_x.y.z.jar -t database_type -dp mysql jdbcdatabase_connector -hq -o output_Directory -db databaseName -u username -p password
for example : java -jar schemaSpy_4.1.1.jar -t mysql -dp mysql-connector-java-5.1.5.jar -hq -o out -db bisudatabae -u bishow -p north


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