摘要:
String.Format("{0:D5}",16);orint i=16;i.ToString("D5");Result: 00016 阅读全文
摘要:
SQL Server SELECT TOP N * FROM 表名 ORDER BY NEWID() My SQLSELECT * FROM 表名 ORDER BY RAND() LIMIT N OracleSELECT * FROM ( SELECT * FROM 表名 ORDER BY DBMS_RANDOM.VALUE )WHERE ROWNUM < = N; 阅读全文