CHAR is a fixed length data type. CHAR(n) will take n characters of storage even if you enter less than n characters to that column. For example, "Hello!" w...
Meta data is the data about data; Business Analyst or data modeler usually capture information about data - the source (where and how the data is originated), n...
A column name qualifier are used as a table designator to avoid ambiguity when the column names referenced exists in more than one table used in the SQL stateme...
Column-name qualifier are used as table designator to avoid ambiguity when the column names referenced exist in more than one table used in the SQL statement. C...
Displaying a drop-down list requires a template column in the grid. Typically, the ItemTemplate contains a control such as a data-bound Label control to show th...
JDBC returns results in a ResultSet object, so we need to declare an instance of the class ResultSet to hold our results. The following code demonstrates declar...