Why does JDBC driver pad some blank characterS other a queried field, from an Oracle Database? Why does JDBC driver pad some blank characterS other a queried field, from an Oracle Database? database database

Why does JDBC driver pad some blank characterS other a queried field, from an Oracle Database?


java database oracle utf-8 jdbc

CHAR Datatype:

The CHAR datatype specifies a fixed-length character string. Oracle ensures that all values stored in a CHAR column have the length specified by size. If you insert a value that is shorter than the column length, then Oracle blank-pads the value to column length.

java database oracle utf-8 jdbc

Don't forget to trim your values while using char. Or don't use char, use varchar2, until you are providing the exact sized value as the column size.

You might want to know why, so here it is.

java database oracle utf-8 jdbc

Have you already read the Oracle documentation on Oracle length semantics for character datatypes?

http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/datatype.htm#sthref3787

Recent Posts
How can I color dots in a xy scatterplot according to column value?
How to update a claim in ASP.NET Identity?
What does {0} mean when initializing an object?
Accessing members of items in a JSONArray with Java
How to log SQL statements in Spring Boot?
Powershell Get-WebSite name parameter is ignored
How to detect scroll to bottom of html element
Java synchronized method
How to test controllers with CodeIgniter?
Detect Visual Composer
Matplotlib: Specify format of floats for tick labels
Rails join a list of strings with commas and "and" before the last