How can i validate date in oracle /sql ?

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Hi In my table i have one field 'FLD_DATE' . I want to fetch the records based on 'FLD_DATE' field.
i want to take the records based on date intervel.
that is,
if i give 01/jan/2013 as my date filed then i hvae to take the records which have date starting from 01/jan/2013.
How can i do this??

Posted 10-Jun-13 19:48pm

Am Gayathri

Updated 10-Jun-13 20:15pm

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Prasad Khandekar · Accepted Answer · 2013-06-10T20:44:00

Hello Gayathri,

Assuming FLD_DATE is of type DATE you can write a simple select query to retrieve the data. The below example shows how you can write such query in oracle.

SQL

SELECT * FROM YOUR_TABLE WHERE FLD_DATE >= TO_DATE('01/JAN/2013', 'DD/MON/YYYY')

If you are calling this query from .NET front-end then you will be using DBCommand in which case the string value(User Input) will be first converted to a Date type variable and then that converted value will be passed to the DBCommand as a parameter. Below snippet shows how it can be done in C# using Oracle Data Provider for .NET[^].

C#

OracleConnection con;
OracleCommand cmd;
OracleParameter prm;
OracleDataReader reader;

con = new OracleConnection(); 
con.ConnectionString = "User Id=scott;Password=tiger;Data Source=oracle"; 
con.Open(); 
cmd = new OracleCommand("SELECT * FROM TABLE_FOO WHERE fld_date >= :filtDate");
prm = new OracleParameter("filtDate", OracleDbType.Varchar2); 
prm.Direction = ParameterDirection.Input; 
prm.value = dtFilter;
cmd.Parameters.Add(prm); 
reader = cmd.ExecuteReader();
// Code for reading the records
reader.Dispose();
cmd.Dispose();

Regards,