Java JwSqlSelect.selectMaximum示例

示例#1

文件： AcUploadDownloadFileDbBase.java 项目： pabplanalp/pvmail

 /** Return the maximum ID; return null if the table is empty. */
 public Integer getMaximumId() {
   JwSqlSelect st = createSelect();
   st.selectMaximum(ALIAS, ID);
   st.from(TABLE, ALIAS);
   return composeFirstInteger(st);
 }