orderByAsc方法用于设置升序排序字段,可以同时设置多个字段按照优先级排序。示例代码如下: javaCopy codeimport com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; QueryWrapper<User> queryWrapper = new QueryWrapper<>(); queryWrapper.orderByAsc(true, true, "age", "create_time"); Lis...
经常见sql语句中order by 1或者order by 2...order by N,有时候很莫名其妙.其实1表示第一个栏位,2表示第二栏位; 依此类推,当表中只有2个栏位时,oder by 3就会出错,这个跟order by 列名没有什么区别,不过在特殊情况下还是很有用的. 例如table1(p_code int,issue_date datetime,issue_num int) p_co...
我们的主键没起排序作用,原因就在于我们的主键是各主键字段 asc 存储。 order by 里 desc 和 asc(默认是 asc) 混用。 为了验证这个说法。我们把该 order by 换为和主键一致的 asc: select substr(t.acq_ins_code, 3) merAcqInsCode, t.mer_code, t.term_id, substr(t.mer_addr_name, 1, 12) mer...
select id, create_date from order where user_id=123 order by create_date asc limit 1;...
private String orderBy; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getOrderBy() { return orderBy; } public void setOrderBy(String orderBy) { this.orderBy = orderBy; ...
mysql> select * from test2 order by a asc; +---+---+ | a | b | +---+---+ | 5 | ready | | 8 | tom | | 10 | jack | | 100 | javacode | +---+---+ 4 rows in set (0.00 sec) mysql> select * from test2 order by a desc...
javacode | +---+---+ 4 rows in set (0.00 sec) mysql> select * from test2 order by a asc; +---+---+ | a | b | +---+---+ | 5 | ready | | 8 | tom | | 10 | jack | | 100 | javacode | +---+---+ 4 rows in set (0.00 sec) mysql> select * from test2 ...
left join tbl_trans_type tt on tt.trans_code = t.before_trans_code where t.sys_date between '20150622' and '20150628' order by t.sys_date desc, t.trans_datetime desc, t.acq_ins_code, t.trace_num limit 0, 20; 1. 2. 3. ...
Asc:指定按递增顺序,从低到高对指定列中的值进行排序,默认。是AscEnd缩写Desc:指定按递减顺序,从高到低对指定列中的值进行排序注意:按升序对结果集排序时,Null值排在最前面 按降序对结果集排序时,Null值排在最后面当Select语句包含 Union 运算符时,列名或列的别名必须是在第一选择列表内指定的列名或列的别名例...
orderBy("a.asc").offset(10).fetch(5); orderBy方法类似sql的order by;limit则由offset及fetch两个方法构成,类似sql的offset及fetch Table flink-table_2.11-1.7.0-sources.jar!/org/apache/flink/table/api/table.scala 代码语言:javascript 复制 class Table( private[flink] val tableEnv: TableEnvironment...