Schema - Related information

• How to add data to mongodb?

  there is an array cateogoryList in the defined Schema: const mongoose = require( mongoose ); const Schema = mongoose.Schema; const ProductCateogorySchema = new Schema({ user:{ type:Schema.Types.ObjectId, ref:"users...

  Schema mongodb

  Jun.25,2022
• Multiple systems share one user table

  there are system An and system B. system An owns database An independently, and system B owns database B. system An and system B share a set of user information database, database C. Database C stores all the information about the user, such as name...

  Java spring database schema design

  Apr.07,2021
• Schema understanding in MySQL

  after reading this article (introducing schema in the database) https: www.biaodianfu.com da., it is mentioned that the schema in MySQL is the same as the library. Is this correct? Thank you ....

  Db db-mysql database schema mysql

  Mar.10,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e9d6a2-1952.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e9d6a2-1952.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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