CREATE TABLE lti2_tool (
  tool_pk int IDENTITY NOT NULL,
  name varchar(50) NOT NULL,
  consumer_key varchar(255) DEFAULT NULL,
  secret varchar(1024) DEFAULT NULL,
  message_url varchar(255) DEFAULT NULL,
  initiate_login_url varchar(255) DEFAULT NULL,
  redirection_uris text DEFAULT NULL,
  public_key text DEFAULT NULL,
  lti_version varchar(10) DEFAULT NULL,
  signature_method varchar(15) NOT NULL DEFAULT 'HMAC-SHA1',
  settings text DEFAULT NULL,
  enabled bit NOT NULL,
  enable_from datetime2 DEFAULT NULL,
  enable_until datetime2 DEFAULT NULL,
  last_access date DEFAULT NULL,
  created datetime2 NOT NULL,
  updated datetime2 NOT NULL,
  PRIMARY KEY (tool_pk),
  CONSTRAINT UC_lti2_tool_initiate_login_url UNIQUE (initiate_login_url ASC)
);