diff --git a/webapp/backend/ddl/create-tables.sql b/webapp/backend/ddl/create-tables.sql
index a3fd8f2012a8d44ce0065a21587cdb0efda8f005..1cc2f0e4176fae86346693d25f5a2c470dab7e0f 100644
--- a/webapp/backend/ddl/create-tables.sql
+++ b/webapp/backend/ddl/create-tables.sql
@@ -121,17 +121,18 @@ CREATE TABLE `Post`
 DROP TABLE IF EXISTS `Comment`;
 CREATE TABLE `Comment`
 (
-    `commentID`   INT  NOT NULL,
-    `userID`      INT  NOT NULL,
-    `postID`      INT  NOT NULL,
-    `content`     TEXT NULL,
-    `commentDate` DATE NULL DEFAULT CURRENT_DATE,
+    `commentID`   INT          NOT NULL AUTO_INCREMENT,
+    `userID`      INT          NOT NULL,
+    `postID`      INT          NOT NULL,
+    `content`     TEXT         NULL,
+    `commentDate` DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP,
     PRIMARY KEY (`commentID`),
     FOREIGN KEY (`userID`) REFERENCES `User` (`userID`),
     FOREIGN KEY (`postID`) REFERENCES `Post` (`postID`),
     INDEX `idx_comment_date` (`commentDate`)
 );
 
+
 -- UserCrew 테이블
 DROP TABLE IF EXISTS `UserCrew`;
 CREATE TABLE `UserCrew`