Describes the columns within all tables in the current database:
Column Name
Type
Length
Nullable
Contents
REFERENCEID
CHAR
36
false
Identifier for table or publication (join with SYSTABLES.TABLEID or SYSPUBS. PUBLICATIONID)
COLUMN-NAME
CHAR
128
false
column or parameter name
COLUMNNUMBER
INT
4
false
the position of the column within the table or the position of the parameter within the publication
COLUMNDATATYPE
org.apache.derby.catalog. TypeDescriptor
This class is not part of the public API.
false
system type that describes precision, length, scale, nullability, type name, and storage type of data
COLUMNDEFAULT
java.io.Serializable
true
for tables, describes default value of the column. The toString() method on the object stored in the table returns the text of the default value as specified in the CREATE TABLE or ALTER TABLE statement.
for publication parameters, defines the default value of the parameter at the source, and the actual value of the parameter at the target
COLUMNDEFAULTID
CHAR
36
false
unique identifier for the default value
IDENTITYCOLUMNVALUE
BIGINT
true
what the next value for column will be, if the column is an identity column
IDENTITYCOLUMNSTART
BIGINT
true
initial value of column (if specified), if it is an identity column
IDENTITYCOLUMNINC
BIGINT
true
amount column value is automatically incremented (if specified), if the column is an identity column
