How to convert DateTime to Date VarChar

Published on: 10:16 AM 0

This line of code do the job

CONVERT(varchar(10), [MyDateTimecolumn], 20)

eg: select PKID,CONVERT(varchar(10), createdDate, 20) from tempTable

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Best way to check if a Data Table has a null (SQL) value in it

Published on: 10:04 AM 0

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 Check Whole table

If you want to check if a null value exists in the table you can use this method:

public static bool HasNull(this DataTable table)
{
    foreach (DataColumn column in table.Columns)
    {
        if (table.Rows.OfType<DataRow>().Any(r => r.IsNull(column)))
            return true;
    }

    return false;
}

and use 

table.HasNull(); 

 where ever you need

 Checking Specific column

Compare the value of the column to the DBNull.Value value to filter and manage null values in whatever way you see fit.

foreach(DataRow row in table.Rows)
{
    object value = row["ColumnName"];
    if (value == DBNull.Value)
        // do something
    else
        // do something else
}

Check More About DBNull Class

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