diff --git a/src/UserGuide/Master/Table/SQL-Manual/Basis-Function.md b/src/UserGuide/Master/Table/SQL-Manual/Basis-Function.md
index 90873a2ae..b50e10dd9 100644
--- a/src/UserGuide/Master/Table/SQL-Manual/Basis-Function.md
+++ b/src/UserGuide/Master/Table/SQL-Manual/Basis-Function.md
@@ -582,7 +582,7 @@ It costs 0.056s
 ```SQL
 SELECT 
     time,
-    date_bin(1h, time, '1969-12-31 00:00:00.000') as time_bin
+    date_bin(1h, time, 1969-12-31 00:00:00.000) as time_bin
 FROM 
     table1;
 ```
diff --git a/src/UserGuide/latest-Table/SQL-Manual/Basis-Function.md b/src/UserGuide/latest-Table/SQL-Manual/Basis-Function.md
index 90873a2ae..b50e10dd9 100644
--- a/src/UserGuide/latest-Table/SQL-Manual/Basis-Function.md
+++ b/src/UserGuide/latest-Table/SQL-Manual/Basis-Function.md
@@ -582,7 +582,7 @@ It costs 0.056s
 ```SQL
 SELECT 
     time,
-    date_bin(1h, time, '1969-12-31 00:00:00.000') as time_bin
+    date_bin(1h, time, 1969-12-31 00:00:00.000) as time_bin
 FROM 
     table1;
 ```
diff --git a/src/zh/UserGuide/Master/Table/SQL-Manual/Basis-Function.md b/src/zh/UserGuide/Master/Table/SQL-Manual/Basis-Function.md
index 5700eea18..c55ba021f 100644
--- a/src/zh/UserGuide/Master/Table/SQL-Manual/Basis-Function.md
+++ b/src/zh/UserGuide/Master/Table/SQL-Manual/Basis-Function.md
@@ -582,7 +582,7 @@ It costs 0.056s
 ```SQL
 SELECT 
     time,
-    date_bin(1h, time, '1969-12-31 00:00:00.000') as time_bin
+    date_bin(1h, time, 1969-12-31 00:00:00.000) as time_bin
 FROM 
     table1;
 ```
diff --git a/src/zh/UserGuide/latest-Table/SQL-Manual/Basis-Function.md b/src/zh/UserGuide/latest-Table/SQL-Manual/Basis-Function.md
index 5700eea18..c55ba021f 100644
--- a/src/zh/UserGuide/latest-Table/SQL-Manual/Basis-Function.md
+++ b/src/zh/UserGuide/latest-Table/SQL-Manual/Basis-Function.md
@@ -582,7 +582,7 @@ It costs 0.056s
 ```SQL
 SELECT 
     time,
-    date_bin(1h, time, '1969-12-31 00:00:00.000') as time_bin
+    date_bin(1h, time, 1969-12-31 00:00:00.000) as time_bin
 FROM 
     table1;
 ```