diff --git a/catalogue/CMakeLists.txt b/catalogue/CMakeLists.txt
index 70b532b25018e682a757e9e647a7f6663a523789..60a931aa7fe7f8dd39b37adb75ba98ac0b8a9e94 100644
--- a/catalogue/CMakeLists.txt
+++ b/catalogue/CMakeLists.txt
@@ -97,7 +97,7 @@ add_custom_command (OUTPUT sqlite_catalogue_schema.sql mysql_catalogue_schema.sq
     ${CMAKE_CURRENT_SOURCE_DIR}/mysql_catalogue_schema_header.sql 
     ${CMAKE_CURRENT_SOURCE_DIR}/common_catalogue_schema.sql 
     ${CMAKE_CURRENT_SOURCE_DIR}/mysql_catalogue_schema_trailer.sql
-    | sed 's/CHECKSUM_BLOB_TYPE/RAWBINARY\(200\)/g'
+    | sed 's/CHECKSUM_BLOB_TYPE/VARBINARY\(200\)/g'
     > mysql_catalogue_schema.sql
   COMMAND cat
     ${CMAKE_CURRENT_SOURCE_DIR}/oracle_catalogue_schema_header.sql
diff --git a/rdbms/wrapper/MysqlRset.cpp b/rdbms/wrapper/MysqlRset.cpp
index af938ea06fa17b31aab1cae4ff095fc93c0b2fa3..ee45544fba3c269359e8da4a089b412232dff518 100644
--- a/rdbms/wrapper/MysqlRset.cpp
+++ b/rdbms/wrapper/MysqlRset.cpp
@@ -79,7 +79,6 @@ bool MysqlRset::next() {
   }
 
   return true;
-  // throw exception::Exception(std::string(__FUNCTION__) + " not implemented.");
 }
 
 //------------------------------------------------------------------------------
@@ -97,7 +96,8 @@ bool MysqlRset::columnIsNull(const std::string &colName) const {
 }
 
 std::string MysqlRset::columnBlob(const std::string &colName) const {
-  throw exception::Exception("MysqlRset::columnBlob not implemented.");
+  auto blob = columnOptionalString(colName);
+  return blob ? *blob : std::string();
 }
 
 //------------------------------------------------------------------------------
diff --git a/rdbms/wrapper/MysqlStmt.cpp b/rdbms/wrapper/MysqlStmt.cpp
index a86c9cf9cec711cb650522a86a36693ec44a91f4..d4d2246369baffc184965c2a8d5b4f632b34e279 100644
--- a/rdbms/wrapper/MysqlStmt.cpp
+++ b/rdbms/wrapper/MysqlStmt.cpp
@@ -261,7 +261,11 @@ void MysqlStmt::bindOptionalDouble(const std::string &paramName, const optional<
 }
 
 void MysqlStmt::bindBlob(const std::string &paramName, const std::string &paramValue) {
-  throw exception::Exception("MysqlStmt::bindBlob not implemented.");
+  try {
+    bindOptionalString(paramName, paramValue);
+  } catch(exception::Exception &ex) {
+    throw exception::Exception(std::string(__FUNCTION__) + " failed: " + ex.getMessage().str());
+  }
 }
 
 //------------------------------------------------------------------------------