diff --git a/api/src/main/resources/db/migration/1.0/V1.0.88__DDL-ALTER_TABLE-LETTER_GRADE.sql b/api/src/main/resources/db/migration/1.0/V1.0.88__DDL-ALTER_TABLE-LETTER_GRADE.sql
new file mode 100644
index 0000000..38cc476
--- /dev/null
+++ b/api/src/main/resources/db/migration/1.0/V1.0.88__DDL-ALTER_TABLE-LETTER_GRADE.sql
@@ -0,0 +1 @@
+ALTER TABLE LETTER_GRADE ADD EFFECTIVE_DATE DATE DEFAULT TO_DATE('2024-07-01', 'YYYY-MM-DD') NOT NULL;
\ No newline at end of file
diff --git a/api/src/main/resources/db/migration/1.0/V1.0.89__DML-UPDATE_TABLE-LETTER_GRADE.sql b/api/src/main/resources/db/migration/1.0/V1.0.89__DML-UPDATE_TABLE-LETTER_GRADE.sql
new file mode 100644
index 0000000..268f667
--- /dev/null
+++ b/api/src/main/resources/db/migration/1.0/V1.0.89__DML-UPDATE_TABLE-LETTER_GRADE.sql
@@ -0,0 +1,63 @@
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='A';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='B';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='C+';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='C';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='C-';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='F';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='I';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'2006-09-01 00:00:00.0'
+WHERE LETTER_GRADE='NM';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0', EXPIRY_DATE=TIMESTAMP'1994-08-31 00:00:00.0'
+WHERE LETTER_GRADE='P';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'2007-09-01 00:00:00.0', EXPIRY_DATE=TIMESTAMP'2021-07-31 00:00:00.0'
+WHERE LETTER_GRADE='RM';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='SG';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='TS';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0'
+WHERE LETTER_GRADE='W';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1940-01-01 00:00:00.0', EXPIRY_DATE=TIMESTAMP'1994-08-31 00:00:00.0'
+WHERE LETTER_GRADE='WF';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'2007-09-01 00:00:00.0'
+WHERE LETTER_GRADE='WR';
+
+UPDATE LETTER_GRADE
+SET UPDATE_USER='API_STUDENT_GRADUATION' , UPDATE_DATE=SYSTIMESTAMP , EFFECTIVE_DATE=TIMESTAMP'1994-09-01 00:00:00.0', EXPIRY_DATE=TIMESTAMP'1997-08-31 00:00:00.0'
+WHERE LETTER_GRADE='IP';