注释

## comment sample create a table
CREATE TABLE IF NOT EXISTS `public`.`runoob_tbl`(
   `runoob_id` VARCHAR,
   `runoob_title` VARCHAR(100) NOT NULL,
   `runoob_author` VARCHAR(40) NOT NULL,
   `submission_date` VARCHAR
)ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- comment sample create a table
CREATE TABLE IF NOT EXISTS "public"."runoob_tbl"
(
  "runoob_id" VARCHAR,
  "runoob_title" VARCHAR(400) NOT NULL,
  "runoob_author" VARCHAR(160) NOT NULL,
  "submission_date" VARCHAR
)
  WITH ( ORIENTATION = ROW, COMPRESSION = NO )
  NOCOMPRESS
  DISTRIBUTE BY HASH ("runoob_id");