System Reference Summary : System Classes : QueryCol Class
 
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QueryCol Class
QueryCol Attributes
Attribute
Data Type
Description
Inherited
From
AsName
varchar(35)
Contains the name specified in the select clause to see a target list column (RW)
Defined
ClassName
varchar(32)
Gives the name of an object's actual type (as opposed to its declared type) (R)
Object
ClientData
Object
Provides a way to associate data with an object (RW)
Object
ClientInteger
integer
An arbitrary integer pointer for use by the client (RW)
Defined
ColumnName
varchar(50)
Contains the name of a database column in the query object (RW)
Defined
DataType
varchar(50)
Contains the data type of the database column in the query object (R)
Defined
DataTypeCode
integer
Specifies an integer code for the data type (R)
Defined
DataTypeLength
integer
Specifies the length of the data type (R)
Defined
DataTypeNullable
integer
Is TRUE if the data type is nullable (R)
Defined
DataTypePrecision
integer
Specifies the precision of the data type (R)
Defined
Expression
varchar(512)
Contains a dynamic expression that the DBMS server evaluates to load the appropriate value into the target column (RW)
Defined
FromTable
QueryTable
Contains the name of the underlying table from which this column is selected (RW)
Defined
GroupBy
smallint
Stores a number that represents the order of the column in the group by clause (RW)
Defined
InstanceIdentifier
integer8
Contains a value that uniquely identifies an instance of an allocated object (R)
Object
InstanceReferences
integer
Contains the current number of references to the object (R)
Object
IsExpression
smallint
Is TRUE if the column contains a simple value or an expression (RW)
Defined
OrderBy
smallint
Specifies the order number of the column in the order by clause (RW)
Defined
Targets
array of QueryParm
Stores information about the field or variable to which this column is mapped (RW)
Defined
Value
Object
Specifies a data object that contains the current column value (valid only if a row has been fetched) (R)
Defined