To Create Feature-Linked Text

Create the table with one geometry column, one ID, one angle field, and one foreign key.

CREATE TABLE LINKED_TEXT
(ID NUMBER PRIMARY KEY,
LinkedID NUMBER,
Angle NUMBER,
Geometry MDSYS.SDO_GEOMETRY);

Insert the table metadata in the Oracle Spatial metadata.

INSERT INTO USER_SDO_GEOM_METADATA (TABLE_NAME, COLUMN_NAME, DIMINFO, SRID)
VALUES (‘LINKED_TEXT', 'Geometry',
MDSYS.SDO_DIM_ARRAY
(MDSYS.SDO_DIM_ELEMENT('X', 714099.913898663, 715312.343907550, 0.000000050),
MDSYS.SDO_DIM_ELEMENT('Y', 4908438.586694972, 4910715.465519385, 0.000000050)),
82247);

Create the spatial index of type point to use rotation.

CREATE INDEX LINKED_TEXT_IDX ON LINKED_TEXT(Geometry)
INDEXTYPE IS MDSYS.SPATIAL_INDEX_V2 PARAMETERS ('layer_gtype=point');

Create the foreign key constraint defining the feature-linked text.

ALTER TABLE LINKED_TEXT
ADD CONSTRAINT LINKED_TEXT_FK
FOREIGN KEY(LinkedID)
REFERENCES LINE(ID)
ON DELETE CASCADE;