Configure Database Connector Data Types Examples - Mule 4

The following examples show how to configure Anypoint Connector for Database (Database Connector) data types by using the Parameters types field to specify the type of each input parameter in the query and the Column types field to set custom data types when connected to a particular database provider.

Configure the Parameter Types Field in Studio

If your JDBC driver either cannot determine the type of the input without error, or a parameter is of a custom type, configure the Parameter types field to specify the type of each input parameter. The following example shows how to configure the Parameter types field in the Bulk insert operation:

In your Studio flow, select the Bulk insert operation.
In the General tab of the operation configuration screen, click the plus sign (+) next to the Connector configuration field to access the global element configuration fields.
Specify the database connection information and click OK.
Set the SQL Query Text field to the SQL query to execute, for example: INSERT INTO PLANET(POSITION, NAME) VALUES (:position, :name)
In the operation configuration screen, click the Advanced tab.
Set the Parameter types field to Edit inline.
Click the green plus sign (+) to create a new parameter type.
In the parameter type window, set the Key field to name and the Type field to VARCHAR.
Click Finish.
Repeat Step 7.
In the parameter type window, set the Key field to position and the Type field to INTEGER.
Click Finish.

The following screenshot shows the configuration in Studio:

Set the Parameter types field to Edit Inline and then click the plus sign to create a new parameter

Figure 1. Parameter Types field configuration

In the XML editor, the <db:parameter-types> configuration looks like this:

<db:bulk-insert queryTimeout="0" queryTimeoutUnit="SECONDS">
     <db:sql>INSERT INTO PLANET(POSITION, NAME) VALUES (:position, :name)</db:sql>
     <db:parameter-types>
         <db:parameter-type key="name" type="VARCHAR" />
         <db:parameter-type key="position" type="INTEGER" />
     </db:parameter-types>
 </db:bulk-insert>

Configure the Column Types Field in Studio

Each connection provider uses exclusive and common parameters, such as Derby and Oracle. A child element of the connection provider element defines custom data types parameters you can use when connected to a particular provider.

The following table provides the JDBC Data Type codes and IDs that you can use to define custom data types:

JDBC Data Type Code	id
ARRAY	2003
BIGINT	-5
BINARY	-2
BIT	-7
BLOB	2004
BOOLEAN	16
CHAR	1
CLOB	2005
DATALINK	70
DATE	91
DECIMAL	3
DISTINCT	2001
DOUBLE	8
FLOAT	6
INTEGER	4
JAVA_OBJECT	2000
LONGNVARCHAR	-16
LONGVARBINARY	-4
LONGVARCHAR	-1
NCHAR	-15
NCLOB	2011
NULL	0
NUMERIC	2
NVARCHAR	-9
OTHER	1111
REAL	7
REF	2006
REF_CURSOR	2012
ROWID	-8
SMALLINT	5
SQLXML	2009
STRUCT	2002
TIME	92
TIME_WITH_TIMEZONE	2013
TIMESTAMP	93
TIMESTAMP_WITH_TIMEZONE	2014
TINYINT	-6
VARBINARY	-3
VARCHAR	12

The following example shows how to configure the Column types field in the Derby global configuration connection element:

In Studio, navigate to the Global Elements tab.
Click Create.
In the Global Type window, filter by typing database.
Select Database Config and click OK.
Set the Connection field to Derby Connection.
Configure the required libraries for the Derby JDBC Driver and the additional connection fields.
Click the Advanced tab.
Set the Column types field to Edit inline.
Click the green plus sign (+) to create a custom column type.
In the parameter type window, set the Id field to 2000 and the Type field to CONTACT_DETAILS.
Click Finish.

The following screenshot shows the configuration in Studio:

Set the Column types field to edit inline and then click the plus sign to create a column type

Figure 2. Column Types field configuration

In the XML editor, the <db:column-type> configuration looks like this:

<db:config name="dbConfig">
   <db:derby-connection url="jdbc:derby:muleEmbeddedDB;create=true">
       <db:column-types>
           <!-- Derby uses JAVA_OBJECT for UDT-->
           <db:column-type typeName="CONTACT_DETAILS" id="2000"/>
       </db:column-types>
   </db:derby-connection>
</db:config>

Configure Database Connector Data Types Examples - Mule 4

Configure the Parameter Types Field in Studio

Configure the Column Types Field in Studio

See Also