Plase给出了在HQL中使用CASE WHEN的示例.
我在代码中使用了以下查询.int receiptNumber = 100;
String hql = "SELECT b FROM OOPExtract as b "+"WHERE "+" b.tranStatId =" +receiptNumber+ " AND " +" b.orderType IN ('EMERGENCY', 'PLENARY', 'PETITION','EXTENSION','MOTION') AND "+" CASE WHEN b.orderType == 'MOTION' " `enter code here`+ "THEN " +" b.status = 'MOTION_SIGNED' " +" ELSE " +" b.status LIKE '%%' ...
我只想检索virtualfile等于我的virtualfile_id的记录(使用Ebean保留)
在路线http://localhost:9000/transactionRecords上,我有几个记录：[{"id":1,"virtualfile":"1","record_type":"D","transaction_type":"MA","card_number":"0000122000200123456","expiry_date":"0000"},
{"id":2,"virtualfile":"1","record_type":"D","transaction_type":"MA","card_number":"0000122000200123456","expiry_date":"0000"},
{"id":3,"virtualf...
我有一个查询：
SELECT * FROM table_name哪里name =？姓=？性别= ?;
我必须将字符串注入查询中(我使用预处理语句),但是问题是这3个子句是可变的；根据用户所做的输入,我可以激活0、1或所有3个子句.
如果用户没有输入任何内容,我该如何“忽略”它们呢？
谢谢大家！
编辑：如果有人知道如何将setStrin()设置为prepareStatement而不让他在字符串周围放置”,那也很好.解决方法:最简单的解决方案是动态构建您的准备好的语句,如下所示：...
我有2个@Where注释实体.第一个是分类;@Where(clause = "DELETED = '0'")
public class Category extends AbstractEntity它有以下关系;@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, mappedBy = "category")
private Set<SubCategory> subCategories = Sets.newHashSet();第二个实体是SubCategory;@Where(clause = "DELETED = '0'")
public class SubCategory extends AbstractEntity并包含对应关系;@ManyToOne(...
我有两张桌子.CREATE TABLE public.question
(id SERIAL PRIMARY KEY, day VARCHAR(2) NOT NULL, month VARCHAR(2) NOT NULL, year VARCHAR(4) NOT NULL
);CREATE TABLE public.question_translation
(id SERIAL PRIMARY KEY, question_id INT REFERENCES public.question(id) NOT NULL, question_text TEXT NOT NULL, language VARCHAR(2) ...
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我想要做的是有一个方法(类似于findBy / get方法)运行WHERE和AND使用提到的NOT NULL属性.
例如,Consider the object Person [firstName, lastName, age, gender]我们的方法看起来像这样findBy_IfNotNullFirstName_AndIfNotNullLastName_AndIfNotNullAge_AndIfNotNullGender(String firstName, String lastName, Integer age, String gender)谢谢.解决方法:看一下JPA规范和谓词,甚至更好...
