diff --git a/webapp/backend/ddl/create-tables.sql b/webapp/backend/ddl/create-tables.sql
index c2b9f89a6ecbe4ea3ab14bd1f11ddddc6d927b13..a3fd8f2012a8d44ce0065a21587cdb0efda8f005 100644
--- a/webapp/backend/ddl/create-tables.sql
+++ b/webapp/backend/ddl/create-tables.sql
@@ -58,7 +58,7 @@ CREATE TABLE `Profile`
 DROP TABLE IF EXISTS `Crew`;
 CREATE TABLE `Crew`
 (
-    `crewID`      INT            NOT NULL,
+    `crewID`      INT            NOT NULL AUTO_INCREMENT,
     `regionID`    INT            NOT NULL,
     `name`        VARCHAR(100)   NOT NULL,
     `sportTypeId` INT            NOT NULL,
@@ -77,7 +77,7 @@ CREATE TABLE `Crew`
 DROP TABLE IF EXISTS `Event`;
 CREATE TABLE `Event`
 (
-    `eventID`      INT          NOT NULL,
+    `eventID`      INT          NOT NULL AUTO_INCREMENT,
     `crewID`       INT          NULL COMMENT '크루 ID (선택 항목으로 변경)',
     `regionID`     INT          NOT NULL,
     `name`         VARCHAR(100) NULL,
@@ -125,7 +125,7 @@ CREATE TABLE `Comment`
     `userID`      INT  NOT NULL,
     `postID`      INT  NOT NULL,
     `content`     TEXT NULL,
-    `commentDate` DATE NULL DEFAULT CURRENT_TIMESTAMP,
+    `commentDate` DATE NULL DEFAULT CURRENT_DATE,
     PRIMARY KEY (`commentID`),
     FOREIGN KEY (`userID`) REFERENCES `User` (`userID`),
     FOREIGN KEY (`postID`) REFERENCES `Post` (`postID`),