diff --git a/easysql-api/src/main/java/cc/carm/lib/easysql/api/builder/ConditionalBuilder.java b/easysql-api/src/main/java/cc/carm/lib/easysql/api/builder/ConditionalBuilder.java
index da34835..163f351 100644
--- a/easysql-api/src/main/java/cc/carm/lib/easysql/api/builder/ConditionalBuilder.java
+++ b/easysql-api/src/main/java/cc/carm/lib/easysql/api/builder/ConditionalBuilder.java
@@ -19,8 +19,6 @@ public interface ConditionalBuilder<T> extends SQLBuilder {
 
 	ConditionalBuilder<T> addCondition(@Nullable String condition);
 
-	ConditionalBuilder<T> addNotNullCondition(@NotNull String queryName);
-
 	ConditionalBuilder<T> addCondition(@NotNull String queryName, @NotNull String operator, @Nullable Object queryValue);
 
 	default ConditionalBuilder<T> addCondition(@NotNull String queryName, @Nullable Object queryValue) {
@@ -29,6 +27,8 @@ public interface ConditionalBuilder<T> extends SQLBuilder {
 
 	ConditionalBuilder<T> addCondition(@NotNull String[] queryNames, @Nullable Object[] queryValues);
 
+	ConditionalBuilder<T> addNotNullCondition(@NotNull String queryName);
+	
 	default ConditionalBuilder<T> addTimeCondition(@NotNull String queryName, long startMillis, long endMillis) {
 		return addTimeCondition(queryName,
 				startMillis > 0 ? new Date(startMillis) : null,
diff --git a/easysql-impl/src/main/java/cc/carm/lib/easysql/builder/impl/AbstractConditionalBuilder.java b/easysql-impl/src/main/java/cc/carm/lib/easysql/builder/impl/AbstractConditionalBuilder.java
index 9a21163..0a16231 100644
--- a/easysql-impl/src/main/java/cc/carm/lib/easysql/builder/impl/AbstractConditionalBuilder.java
+++ b/easysql-impl/src/main/java/cc/carm/lib/easysql/builder/impl/AbstractConditionalBuilder.java
@@ -45,12 +45,6 @@ public abstract class AbstractConditionalBuilder<T> extends AbstractSQLBuilder i
 		return this;
 	}
 
-	@Override
-	public AbstractConditionalBuilder<T> addNotNullCondition(@NotNull String queryName) {
-		return addCondition("`" + queryName + "` IS NOT NULL");
-	}
-
-
 	@Override
 	public AbstractConditionalBuilder<T> addCondition(
 			@NotNull String queryName, @NotNull String operator, @Nullable Object queryValue
@@ -73,6 +67,13 @@ public abstract class AbstractConditionalBuilder<T> extends AbstractSQLBuilder i
 		return this;
 	}
 
+
+	@Override
+	public AbstractConditionalBuilder<T> addNotNullCondition(@NotNull String queryName) {
+		return addCondition("`" + queryName + "` IS NOT NULL");
+	}
+
+
 	@Override
 	public AbstractConditionalBuilder<T> addTimeCondition(
 			@NotNull String queryName, @Nullable Date startDate, @Nullable Date endDate