public override string ToString (); 返回 String 表示此实例的 String。 适用于 产品版本 Entity Framework 6.2.0 在GitHub 上与我们协作 可以在 GitHub 上找到此内容的源,还可以在其中创建和查看问题和拉取请求。 有关详细信息,请参阅参与者指南。 Entity Framework 反馈 Entity Framework 是一个开放源代码...
public IEnumerable<Person> GetPersons(string lastnames) { string[] param = lastnames.Split(','); string thisquery = @"SELECT id, firstname, lastname, address, county, state, zip, country from Person where lastname in ({0})"; var results = db.Database.SqlQuery<Person>(thisquery...
1. esql => entity sql... 【类sql的语言】 和sql差不多,但是呢,不是sql。。。 using (SchoolDBEntities db = new SchoolDBEntities()) { //Querying with Object Services and Entity SQL string sqlString = "select Value s from SchoolDBEntities.Students as s"; //select * from Student var ob...
query(query: string): Promise<any> So I expected this to fail: Entity: @Entity() @Index(["country","iso3","region","name","pollutant"], { unique: true }) export class ExposureRegion implements Region { @PrimaryColumn() @Column({ length: 56 }) country?: string; @PrimaryColumn() ...
\n" + "order by b.iSubCount>0, (T.[N_QNTTY]-b.[iSubCount]) desc, T.[I_ID]"; strSQL = MessageFormat.format(strSQL, String.join(",", dao.getAllColumns())); try { cursor = BaseApplication.getDaoInstant().getDatabase().rawQuery(strSQL, new String[]{cBillCode}); dao....
String 原始SQL 查询。 parameters Object[] 要分配给参数的值。 返回 IQueryable<TResult> 表示IQueryable<T>原始 SQL 查询的 。 注解 若要将此方法用于数据库提供程序本身不支持的返回类型,请使用DefaultTypeMapping<TScalar>(Action<TypeMappingConfigurationBuilder<TScalar>>)方法。
public void setUrl(String url) { this.url = url; } public Long getId() { return this.id; } public void setId(Long id) { this.id = id; } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.
name String? posts Post[] } model Post { id Int @id @default(autoincrement()) title String content String? published Boolean @default(false) author User @relation(fields: [authorId], references: [id]) authorId Int } The above defines thedatasource dbas a PostgreSQL database with the con...
String name = res[0]["first_name"]; 1. 2. 3. 4. 5. 可以通过 ORM 简化成: Person p = repository.GetPerson(10); String name = p.getFirstName(); 1. 2. 3. 4. 省去了创建数据模型(Result或Person)的工作,相当简洁 结合Query Builder ...
are obtained from theDatabaseinstance. The query is not executed when this object is created; it is executed each time it is enumerated, for example by usingforeach. SQL queries for entities are created usingSqlQuery(String, Object[]). SeeDbRawSqlQueryfor a non-generic version of this ...