diff --git a/jdbc-query/src/main/java/org/xbib/jdbc/query/Database.java b/jdbc-query/src/main/java/org/xbib/jdbc/query/Database.java
index 30a9c6a..2ce2ee0 100644
--- a/jdbc-query/src/main/java/org/xbib/jdbc/query/Database.java
+++ b/jdbc-query/src/main/java/org/xbib/jdbc/query/Database.java
@@ -21,7 +21,7 @@ public interface Database extends Supplier<Database> {
      */
     SqlInsert toInsert(String sql);
 
-    SqlInsert toInsert( Sql sql);
+    SqlInsert toInsert(Sql sql);
 
     /**
      * Create a SQL "select" statement for further manipulation and execution.
@@ -36,7 +36,7 @@ public interface Database extends Supplier<Database> {
      */
     SqlSelect toSelect(String sql);
 
-    SqlSelect toSelect( Sql sql);
+    SqlSelect toSelect(Sql sql);
 
     /**
      * Create a SQL "update" statement for further manipulation and execution.
@@ -51,7 +51,7 @@ public interface Database extends Supplier<Database> {
      */
     SqlUpdate toUpdate(String sql);
 
-    SqlUpdate toUpdate( Sql sql);
+    SqlUpdate toUpdate(Sql sql);
 
     /**
      * Create a SQL "delete" statement for further manipulation and execution.
@@ -66,7 +66,7 @@ public interface Database extends Supplier<Database> {
      */
     SqlUpdate toDelete(String sql);
 
-    SqlUpdate toDelete( Sql sql);
+    SqlUpdate toDelete(Sql sql);
 
     /**
      * Create a DDL (schema modifying) statement for further manipulation and execution.