I'm creating a web form application with JSP to interact with an Oracle database. I'm
using Tomcat 5.0.19, JSTL 1.1 Standard, and Oracle 9i Release 2. I'm running across a
problem when I try to update a Date column in the database. The date is entered via a
text input field that I validate the format of via JavaScript. INSERTing the date as a
NULL works fine (separate form from the update). It's when the Date column already has
a
value and I try to UPDATE it to a NULL value. The fmt:parseDate action was copied
directly from my INSERT page, so I know that part works fine. I've verified that all
other fields besides the Date fields are being passed and updated correctly.
Thanks in advance!
Here are the relevant snippets of my code and the resultant error stack trace:
<fmt:parseDate value="${param.project_date}" var="parsed_project_date" pattern="dd-MM-
yyyy" />
<sql:transaction>
<sql:update>
UPDATE ccevs_projects_registry SET
project_date = ? <sql:dateParam value="${parsed_project_date}" />
WHERE project_id = ? <sql:param value="${param.project_id}" />
</sql:update>
</sql:transaction>
exception
javax.servlet.ServletException:
UPDATE ccevs_projects_registry SET
product_name = ? ,
project_date = ?
WHERE project_id = ?
: Invalid column type
org.apache.jasper.runtime.PageContextImpl.doHandlePageException
(PageContextImpl.java:864)
org.apache.jasper.runtime.PageContextImpl.handlePageException
(PageContextImpl.java:800)
org.apache.jsp.project_005fupdate_005fstore_jsp._jspService
(project_005fupdate_005fstore_jsp.java:141)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause
java.sql.SQLException: Invalid column type
oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
oracle.jdbc.driver.OracleStatement.get_internal_type(OracleStatement.java:6414)
oracle.jdbc.driver.OraclePreparedStatement.setNull
(OraclePreparedStatement.java:1354)
oracle.jdbc.driver.OraclePreparedStatement.setObject
(OraclePreparedStatement.java:2791)
oracle.jdbc.driver.OraclePreparedStatement.setObject
(OraclePreparedStatement.java:3217)
org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport.setParameters(Unknown
Source)
org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport.doEndTag(Unknown
Source)
org.apache.jsp.project_005fupdate_005fstore_jsp._jspx_meth_sql_update_0
(project_005fupdate_005fstore_jsp.java:487)
org.apache.jsp.project_005fupdate_005fstore_jsp._jspx_meth_sql_transaction_0
(project_005fupdate_005fstore_jsp.java:417)
org.apache.jsp.project_005fupdate_005fstore_jsp._jspService
(project_005fupdate_005fstore_jsp.java:132)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
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