import {Table, Column, PrimaryGeneratedColumn} from "typeorm"; @Table() export class Photo { @PrimaryGeneratedColumn() id: number; @Column({ length: 500 }) name: string; @Column("text") description: string; @Column() fileName: string; @Column("int") views: number; @Column() isPublis...
commit() print("Total number of rows deleted :", conn.total_changes) cursor = conn.execute("SELECT id, name, address, salary from COMPANY") for row in cursor: print("ID = ", row[0]) print("NAME = ", row[1]) print("ADDRESS = ", row[2]) print("SALARY = ", row[3], "\...
importsqlite3conn=sqlite3.connect('example.db')c=conn.cursor()c.execute("UPDATE stocks SET qty = 200 WHERE symbol = 'RHAT'")conn.commit()print("Number of rows updated: ",conn.total_changes) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 在上面的示例中,我们使用UPDATE语句将stocks表格...
{'id': 3, 'username': 'jerry', 'password': '147258', 'gender': '三年二班', 'sex': 'male', 'phone_number': 13733333333} 1990595350992"""#插入数据execute_data("insert into userinfo(username, password, gender, sex, phone_number) values(%s, %s, %s, %s, %s)", ...
@Entity()exportclassSqlBook{@PrimaryKey()id:number;} Or if you want to use UUID primary keys: ./entities/UuidBook.ts import{randomUUID}from'node:crypto';@Entity()exportclassUuidBook{@PrimaryKey()uuid=randomUUID();} More information can be found indefining entities sectionin docs. ...
rs = User.findNumber(selectField='id') print(rs)输出如下1 2 3 4 5 SQL通过findNumber查询语句是:select id _num_ from `users`,None INFO:root:SQL:select id _num_ from `users` INFO:root:rows returned: 1 findNumber查询结果是[{'_num_': '00163764569648657ab15f6c89a483a8f2aa02ece349bba...
>>> from django.db.models import Count>>> q = Blog.objects.annotate(Count('entry'))# The name of the first blog>>> q[0].name'Blogasaurus'# The number of entries on the first blog>>> q[0].entry__count42 1. Blog模型本身没有定义entry__count属性,但是通过使用一个...
import { Entity, PrimaryGeneratedColumn, Column } from "typeorm";@Entity()export class User { @PrimaryGeneratedColumn() id: number; @Column() firstName: string; @Column() lastName: string; @Column() age: number;} 逻辑操作就像是这样: const user = new User();user.firstName = "Timber"...
# 获取链接池、ORM表对象 import models import datetime models.session.add_all( ( # 插入学号表数据 models.StudentsNumberInfo( number=160201, admission=datetime.datetime.date(datetime.datetime(2016, 9, 1)), graduation=datetime.datetime.date(datetime.datetime(2021, 6, 15)) ), models.Stude...
obj.number = 99 obj.save() def updata(): """更新数据""" obj = Test.get(Test.name == '更新') obj.name = '更新完毕' obj.number = 100 obj.save() def select_all(): """查询所有数据""" ret = Test.select() for obj in ret: print...