The stored procedure
CATALOG_VDP_METADATA_VIEWS returns information
about all the fields of all the views of a Virtual DataPort database.
This information includes the type of the field, precision in case of
You can filter by view and/or database.
CATALOG_VDP_METADATA_VIEWS ( input_database_name : text , input_view_name : text )
input_database_name: name of the database.
input_view_name: name of the view you want to obtain its fields.
The procedure returns a row for each field of each view.
null, the procedure returns the
fields of all the views of all the databases.
null, the procedure returns the fields of all the
views of the
The output schema has the following fields:
database_name: name of the database that the view of the field belongs to.
view_name: name of the view’s field.
view_type: type of the view:
0: base view.
1: derived view.
column_name: name of the field.
column_type_name: name of the type of the field in the “source type properties” of the field. E.g.
These are the names of the constants defined in the class java.sql.Types of the JDBC API.
column_type: number that represents the type of the field in the “source type properties” of the field.
The values of this field are defined in the class java.sql.Types of the JDBC API. E.g.
column_type_precision: its meaning depends on the type of the field:
For fields of type
text, it indicates the maximum length of the field.
For numeric types, it indicates the precision. Therefore, for
longfields, this number is
column_type_length: maximum length in bytes of the values of this field.
column_type_scale: number of fractional digits that a value of this field could store.
column_vdp_type_name: name of the type in Virtual DataPort. This value is different from “column_type_name”, which returns the type set in the “source type properties” of the field.
column_description: description of the field. If the field does not have a description, the value is an empty string.
column_vdp_type_database: database where the column types are defined for complex types;
nullif the type is primitive (i.e. “text”, “long”…).
This procedure only returns information about the views on which the user has the Metadata privilege. The implications of this are the following:
If the user is an administrator, the procedure will return information about all the views of all the databases.
The procedure will return information about the views of the databases on which the user is a local administrator.
The procedure will return information about the views of the databases on which the user has Connect and Metadata privileges.
Note that this procedure does not return a “privileges error”. For example, let us say that:
A user executes
SELECT * FROM CATALOG_VDP_METADATA_VIEWS();
(i.e. obtain information about all the fields of all the views of all databases)
This user only has Connect and Metadata privileges on the database
In this scenario, the procedure only returns information about the views
testing database and not about the views of the other