Retrieves the value of the designated JDBC BLOB parameter as a Blob object in the Java programming language given the parameter index.
语法
public java.sql.Blob getBlob(int index)
参数
index
指示参数索引的 int 值。
返回值
A Blob object.
异常
备注
This getBlob method is specified by the getBlob method in the java.sql.CallableStatement interface.