我正在使用 MySQL 的 LOAD DATA LOCAL INFILE 功能将记录行从文本文件加载到表中。一切正常,但我想知道如何将文本文件中的行号插入表的 LINE_NUMBER 列?
public String getLoadDataSQL() throws Exception {
StringBuffer sb = new StringBuffer();
sb.append( "LOAD DATA LOCAL INFILE '"+ filePath +"' INTO TABLE "+ this.tableName );
sb.append( " LINES TERMINATED BY '\\n'");
sb.append( " (@line) ");
sb.append( " SET ROLL_NUMBER = substr(@line,1,9), ");
sb.append( " LAST_NAME = substr(@line,10,30), ");
....
sb.append( " LINE_NUMBER = "+ ????? +", "); // WHAT TO DO HERE??
...
System.out.println(sb.toString());
return sb.toString();
}
你能建议我怎么做吗?