02 2017 档案

摘要：1. execute DDL 2. we need to concatenate query about the table name and condition. we have three method to execute dynamic query 1.execute immediate 2 阅读全文

摘要：before : we use null and assign string value to CLOB object directly. but it will enter the performance issue to print the content in the loop: v_clob 阅读全文