diff --git a/xml/queries.xml b/xml/queries.xml
index a91d405b2..dbd0175e6 100644
--- a/xml/queries.xml
+++ b/xml/queries.xml
@@ -508,7 +508,7 @@
 
     <!-- Sybase -->
     <dbms value="Sybase">
-        <cast query="CONVERT(NVARCHAR(4000),%s)"/>
+        <cast query="CONVERT(VARCHAR(4000),%s)"/>
         <length query="LTRIM(STR(LEN(%s)))"/>
         <isnull query="ISNULL(%s,' ')"/>
         <delimiter query="+"/>
@@ -559,7 +559,7 @@
         </columns>
         <dump_table>
             <inband query="SELECT %s FROM %s.%s"/>
-            <blind query="SELECT MIN(%s) FROM %s WHERE CONVERT(NVARCHAR(4000),%s)>'%s'" query2="SELECT MAX(%s) FROM %s WHERE CONVERT(NVARCHAR(4000),%s) LIKE '%s'" count="SELECT COUNT(*) FROM %s" count2="SELECT COUNT(*) FROM (SELECT DISTINCT %s FROM %s) AS value_table"/>
+            <blind query="SELECT MIN(%s) FROM %s WHERE CONVERT(VARCHAR(4000),%s)>'%s'" query2="SELECT MAX(%s) FROM %s WHERE CONVERT(VARCHAR(4000),%s) LIKE '%s'" count="SELECT COUNT(*) FROM %s" count2="SELECT COUNT(*) FROM (SELECT DISTINCT %s FROM %s) AS value_table"/>
         </dump_table>
         <search_db>
             <inband query="SELECT name FROM master..sysdatabases WHERE %s" condition="name"/>