陈世涛：java中常用SQL语句操作SQLserver2008数据库

陈世涛：SQL语句

增

插入数据

保证数据列数正确

        JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        String sql = "insert into user1 values(?,?,null,?,?,null,null,?)";
        int i = template.update(sql, staffNo, password, factory, factoryId, type);

删

删除某个表中所有数据

        JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        String sql="TRUNCATE TABLE protectactionshowTime";
        template.update(sql);

删除满足条件的列

      JdbcTemplate templateCentral = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        //        删除所有未完结的数据（包括上月和本月的）
        templateCentral.update("delete from singleactioncountall where flag = 0");

改

更改某列数据

        JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        //    写入保护种类名称,及对应的条数
        String sql ="update  ProTypeData  set ProTypeCount = ? where ProTypeName = ? and  FactoryId = ? and ProTypeClass = 0";
        template.update(sql,singleCount,s,FId);

更改多个

                                String sql8 = "update protectactionsave set " + typecount + " = ?," + typetime + " = ?,最后id = ?,总次数 = ?,总时间 = ?,更新时间 = ? where id =?";
                                templateCentral.update(sql8, savecount, savetime, data.getBH_ID(), totalcount, totaltime, now, data3.getId());

查

查询所有

 JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
  String sql = "select * from ProType where Id = ?";
          
ProType proType1 = template.queryForObject(sql, new BeanPropertyRowMapper<ProType>(ProType.class),a);

排序倒序查

JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        String sql = "select * from ProTypeData where FactoryId = ? and ProTypeClass = 0  order by ProTypeCount  DESC";
        List<ProTypeData> list = template.query(sql, new BeanPropertyRowMapper<ProTypeData>(ProTypeData.class),FId);

like查询

查找关键字中不包含任何一个中括号里的字的查询

       String sql = "select count(*) from xmc_bhtc1 where 查询日期 between ? and ? and 保护名称 not like '%[合漏观源停轻]%'";
            int count = template.queryForObject(sql,Integer.class, StarTime,EndTime);

相似查询

        JdbcTemplate template = new JdbcTemplate(CoalFeederTimeJDBC.getDataSource());
        String sql="select * from CoalFeederTime where factory=? and position like '%产品仓%' order by position";
        List<CoalFeederTime> CoalFeederTimeData=template.query(sql,new BeanPropertyRowMapper<CoalFeederTime>(CoalFeederTime.class),factoryname);

按月日期查询

查找5月份的数据

JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
String sql = "select * from protectactioncountorderall where 厂号 = ? and CONVERT(varchar(7),数据时间, 120 ) = '2020-05-20' ";
                list = template.query(sql, new BeanPropertyRowMapper<countOrder>(countOrder.class), FId);

查找第一个

JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
 String sql = "select top 1 * from user1 where FactoryID = ?";
            User user = template.queryForObject(sql, new BeanPropertyRowMapper<User>(User.class), Fid);

查次数-日期条件

具体月份查询

 JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
String sql1 = "select count(*) from  singleactioncountall  where factoryid = ? and count1 >= 5 and CONVERT(varchar(7),datatime, 120 ) = '2020-05-20' ";
            int count1 = template.queryForObject(sql1, Integer.class, fid);

本月查询

         JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        String sql1 = "select count(*) from xmc_bhtc1 where  DATEDIFF(month,查询日期,GETDATE()) = 0 and 撤销时长 > 30 and 保护名称 not like '%[合漏观源停轻]%'";
        int count = template.queryForObject(sql1, Integer.class);

顺序逐条查询

JdbcTemplate template = new JdbcTemplate(CnetralDBJDBC.getDataSource());
String sql = "select top 1 * from xmc_bhdz1 where BH_ID not in (select top " + (i - 1) + " BH_ID from xmc_bhdz1 where BH_ID > ? and DATEDIFF(month,查询日期,GETDATE())= 0 and 保护名称 not like '%[合漏观源停轻]%' ) and BH_ID > ?  and DATEDIFF(month,查询日期,GETDATE())= 0 and 保护名称 not like '%[合漏观源停轻]%' ";
                            xmc_bhdz data = template.queryForObject(sql, new BeanPropertyRowMapper<xmc_bhdz>(xmc_bhdz.class), startid, startid);

逆序查询

查询id最大的数据

    JdbcTemplate templateCentral = new JdbcTemplate(CnetralDBJDBC.getDataSource());
        String sql = "select top 1 * from (select top " + i + " * from protectactionsave where  DATEDIFF(month,更新时间,GETDATE())= 0 and 厂号 = ? order by 最后id desc )A order by 最后id ";
        cn.itcast.domain.protectsave data = templateCentral.queryForObject(sql, new BeanPropertyRowMapper<cn.itcast.domain.protectsave>(cn.itcast.domain.protectsave.class),fid);

逆序查询

               String sq2 = "select top 1 * from (select top 1 * from WarnTimeSave where  flag = 0 order by recordtime DESC )A order by recordtime ";//倒序
                WarnTimeSave data6 = template.queryForObject(sq2, new BeanPropertyRowMapper<WarnTimeSave>(WarnTimeSave.class));

复制

sqlserver复制表数据到另一个表
SQL Server中，如果目标表存在：

insert into 目标表 select * from 原表;

SQL Server中,，如果目标表不存在：

select * into 目标表 from 原表;

Oracle中，如果目标表存在：

insert into 目标表 select * from 原表;

commit;
Oracle中，如果目标表不存在：
create table 目标表 as select * from 原表;