ZKX's LAB

hql去掉重复数据 hql语句怎么消除重复内容

2021-04-28知识5

用什么子句去掉重复的记? select Distinct(列名)from table

hibernate hql 语句去除重复数据 参考如下:功能:根据品牌查询param pageSize每页大小param currentLPagem当前第几页param productBlack产品品牌param productBlackItem产品分类param productSize产品尺码param keyWord搜索关键字returnpublic pageBean seachProductByBrank(int pageSize,int currentLPage,String product_Brank,String product_itemName){final String hql=\"from\"+OgrilProducts.class.getName()where product_Brank='\"+product_Brank' and product_itemName='\"+product_itemName' order by product_registerDate desc;final String hql=\"fromOgrilProducts.class.getName()as product where product.productItemName='product_itemName' and productBrank='product_Brank' and not exists(fromOgrilProducts.class.getName()where productItemName='product_itemName' and productBrank='product_Brank' and productItemNumber=product.productItemNumber and productId);int allRow=this.getAllRowCount(hql);总记录数int totalPage=pageBean.countTotalpage(pageSize,allRow);总页数final int offset=pageBean.countOffset。

hql语句查询去掉某一字段重复的行保留一行 参考如下:功能:根据品牌查询param pageSize每页大小param currentLPagem当前第几页param productBlack产品品牌param productBlackItem产品分类param productSize产品尺码param keyWord搜索关键字returnpublic pageBean seachProductByBrank(int pageSize,int currentLPage,String product_Brank,String product_itemName){final String hql=\"from\"+OgrilProducts.class.getName()where product_Brank='\"+product_Brank' and product_itemName='\"+product_itemName' order by product_registerDate desc;final String hql=\"fromOgrilProducts.class.getName()as product where product.productItemName='product_itemName' and productBrank='product_Brank' and not exists(fromOgrilProducts.class.getName()where productItemName='product_itemName' and productBrank='product_Brank' and productItemNumber=product.productItemNumber and productId);int allRow=this.getAllRowCount(hql);总记录数int totalPage=pageBean.countTotalpage(pageSize,allRow);总页数final int offset=pageBean.countOffset(pageSize,。

#hql去掉重复数据

随机阅读

qrcode
访问手机版