 /
 
 CREATE TABLE WF_WORKFLOW_CONFIG_PARAM(
-    WORKFLOW_ID VARCHAR (45),
-    PARAM_NAME VARCHAR (45),
-    PARAM_VALUE VARCHAR (1000),
+    WORKFLOW_ID VARCHAR (45) NOT NULL,
+    PARAM_NAME VARCHAR (45) NOT NULL,
+    PARAM_VALUE VARCHAR (1000) NOT NULL,
     PRIMARY KEY (WORKFLOW_ID, PARAM_NAME),
     FOREIGN KEY (WORKFLOW_ID) REFERENCES WF_WORKFLOW(ID)ON DELETE CASCADE)
 /

    ASSOC_NAME VARCHAR (45),
    EVENT_ID VARCHAR(45),
    ASSOC_CONDITION VARCHAR (2000),
    WORKFLOW_ID VARCHAR (45),
    IS_ENABLED CHAR (1) DEFAULT '1',
    PRIMARY KEY(ID),
    FOREIGN KEY (WORKFLOW_ID) REFERENCES WF_WORKFLOW(ID)ON DELETE CASCADE)

/

CREATE TABLE WF_REQUEST (
    UUID VARCHAR (45) NOT NULL,
    CREATED_BY VARCHAR (255),
    TENANT_ID INTEGER NOT NULL DEFAULT -1,
    OPERATION_TYPE VARCHAR (50),
