Sophie: postgresql-docs-7.4.1-2.5.100mdk i586

postgresql-docs-7.4.1-2.5.100mdk.i586.rpm

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>Chapter 31. <ACRONYM
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>31.4. Performing Updates</A
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>    To change data (perform an <TT
CLASS="COMMAND"
>INSERT</TT
>,
    <TT
CLASS="COMMAND"
>UPDATE</TT
>, or <TT
CLASS="COMMAND"
>DELETE</TT
>) you use
    the <CODE
CLASS="FUNCTION"
>executeUpdate()</CODE
> method.  This method is
    similar to the method <CODE
CLASS="FUNCTION"
>executeQuery()</CODE
> used to
    issue a <TT
CLASS="COMMAND"
>SELECT</TT
> statement, but it doesn't return
    a <CODE
CLASS="CLASSNAME"
>ResultSet</CODE
>; instead it returns the number
    of rows affected by the <TT
CLASS="COMMAND"
>INSERT</TT
>,
    <TT
CLASS="COMMAND"
>UPDATE</TT
>, or <TT
CLASS="COMMAND"
>DELETE</TT
> statement.
    <A
HREF="jdbc-update.html#JDBC-DELETE-EXAMPLE"
>Example 31-3</A
> illustrates the usage.
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><B
>Example 31-3. Deleting Rows in <ACRONYM
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>JDBC</ACRONYM
></B
></P
><P
>     This example will issue a simple <TT
CLASS="COMMAND"
>DELETE</TT
>
     statement and print out the number of rows deleted.
</P><PRE
CLASS="PROGRAMLISTING"
>int foovalue = 500;
PreparedStatement st = db.prepareStatement("DELETE FROM mytable WHERE columnfoo = ?");
st.setInt(1, foovalue);
int rowsDeleted = st.executeUpdate();
System.out.println(rowsDeleted + " rows deleted");
st.close();</PRE
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