diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,12 +1,12 @@
 # TIL
  
 ### DATABASE [2]
-- [**[2023-12-18]**  관계 데이터 모델](https://github.com/A-lass/TIL/blob/main/DATABASE/관계_데이터_모델.md)
-- [**[2023-12-18]**  트랜잭션](https://github.com/A-lass/TIL/blob/main/DATABASE/트랜잭션.md)
+- [**[2023-12-19]**  관계 데이터 모델](https://github.com/A-lass/TIL/blob/main/DATABASE/관계_데이터_모델.md)
+- [**[2023-12-19]**  트랜잭션](https://github.com/A-lass/TIL/blob/main/DATABASE/트랜잭션.md)
 ### Java [6]
-- [**[2023-12-18]**  Call By Value vs Call By Reference](https://github.com/A-lass/TIL/blob/main/Java/Call_By_Value_vs_Call_By_Reference.md)
-- [**[2023-12-18]**  String StringBuilder StringBuffer](https://github.com/A-lass/TIL/blob/main/Java/String_StringBuilder_StringBuffer.md)
-- [**[2023-12-18]**  동기화](https://github.com/A-lass/TIL/blob/main/Java/동기화.md)
-- [**[2023-12-18]**  추상클래스와 인터페이스](https://github.com/A-lass/TIL/blob/main/Java/추상클래스와_인터페이스.md)
-- [**[2023-12-18]**  JVM](https://github.com/A-lass/TIL/blob/main/Java/JVM.md)
-- [**[2023-12-18]**  GC](https://github.com/A-lass/TIL/blob/main/Java/GC.md)
+- [**[2023-12-19]**  Call By Value vs Call By Reference](https://github.com/A-lass/TIL/blob/main/Java/Call_By_Value_vs_Call_By_Reference.md)
+- [**[2023-12-19]**  String StringBuilder StringBuffer](https://github.com/A-lass/TIL/blob/main/Java/String_StringBuilder_StringBuffer.md)
+- [**[2023-12-19]**  동기화](https://github.com/A-lass/TIL/blob/main/Java/동기화.md)
+- [**[2023-12-19]**  추상클래스와 인터페이스](https://github.com/A-lass/TIL/blob/main/Java/추상클래스와_인터페이스.md)
+- [**[2023-12-19]**  JVM](https://github.com/A-lass/TIL/blob/main/Java/JVM.md)
+- [**[2023-12-19]**  GC](https://github.com/A-lass/TIL/blob/main/Java/GC.md)