From 8662a7be25c3bc3b3d3e86b27cd245c68b381666 Mon Sep 17 00:00:00 2001
From: Piotr Kotlicki <piotr.kotlicki@gmail.com>
Date: Wed, 4 Jul 2018 10:40:48 +0200
Subject: [PATCH] #65 Setting parameter to SQL NULL instead of String

---
 src/main/java/com/jcabi/jdbc/PrepareArgs.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/jcabi/jdbc/PrepareArgs.java b/src/main/java/com/jcabi/jdbc/PrepareArgs.java
index e86313d..99138cd 100644
--- a/src/main/java/com/jcabi/jdbc/PrepareArgs.java
+++ b/src/main/java/com/jcabi/jdbc/PrepareArgs.java
@@ -32,6 +32,7 @@
 import java.sql.Date;
 import java.sql.PreparedStatement;
 import java.sql.SQLException;
+import java.sql.Types;
 import java.util.Collection;
 import java.util.Collections;
 
@@ -68,7 +69,7 @@ public void prepare(final PreparedStatement stmt) throws SQLException {
         int pos = 1;
         for (final Object arg : this.args) {
             if (arg == null) {
-                stmt.setString(pos, null);
+                stmt.setNull(pos, Types.NULL);
             } else if (arg instanceof Long) {
                 stmt.setLong(pos, Long.class.cast(arg));
             } else if (arg instanceof Boolean) {