migrate data from oracle to mongodb

In project development, it is sometimes necessary to migrate SQL Server data to MySQL because the database used at the beginning of the project is SQL Server, and then the stored database is adjusted to MySQL. The following is a small series of day-to-day collation of a SQL Server database migration method. One, SQL Server common data types and MySQL different p

One, SQL Server common data types and MySQL different places Ii. issues to be noted in migrating SQL Server data to MySQL 1. Unlike a unique index, a field that is uniquely indexed by SQL Server can only allow a null value, and MySQL, which has a field that corresponds to a unique index in Oracle, allows multiple null values

zlm_pump as '/u01/expdp '; Directory created. SQL>! Mkdir/u01/expdp SQL> alter user scott identified by tiger account unlock; User altered. SQL> grant connect, resource to scott; Grant succeeded. SQL> grant read, write on directory zlm_pump to scott; Grant succeeded. SQL> conn scott/tiger Connected. SQL> create table zlm1 as select * from dba_objects; Table created. SQL> insert into zlm1 select * from dba_objects; 50318 rows created. SQL>/ 50318 rows created. SQL> select count (*

Oracle and mysql migrate from one another Recently, some of my friends have encountered some problems. How can oracle be converted to mysql? Today, I am here to teach you how to switch First, you need to download a tool navicat premium. (If you don't have any friends, you can search and install it on your own) 1. Use navicat premium to connect to

migrate if you include partitioned tables, all partitions must be in the tablespace. Steps to migrate: 1. Check to see if the table space is self-contained: Execute Sys.dbms_tts.transport_set_check (' tablespace_name1,... ', true); Select * from Sys.transport_set_violations; If the "No rows selected" is displayed when the select is finished, the table space is self-contained. 2. Set table space to re

How to migrate a MySQL database to an Oracle database bitsCN.com: Tools to be prepared: 1. jdbc driver mysql-connector-java-5.0.4-bin.jar connecting to Mysql 2. SQL Developer 1.2 developed by Oracle Company The following is how to configure SQL Developer 1.2 Configuration environment: Select Tools-Preferences-Database-Third Party JDBC Driver and click Add

Tags: gem requires a different advanced listener blank password TAF data fileInterview: Exp/imp logical backup and recovery: Two, storage storage migration: Data files, control files, log files, SPFile to the new machine, and then start the database on the new machine. Third, the use of data Guard migration: four, using Rman to do the migration: we often need to

Oracle Rac 11.2.0.3 migrate OCR and VOTEDISK, 11.2.0.3votediskEnvironment: AIX7.1 + Oracle Rac 11.2.0.3Migration Description: When Oracle Rac is installed today, the GB Data disk is incorrectly used as OCRDG. Therefore, it will be troublesome to

Migrate the oracle database from the 32-bit platform to the 64-bit The disk of the customer's 32-bit oracle database system is damaged. Fortunately, the oracle database is intact. The customer requested that the database be migrated to the newly purchased device. The memory of the new device is 64 GB, and the system RE

Migration environment Configuration: Data source:BNET Development Environment Data Server:SunOS v880 5.8 Database:Oracle 9.2.0.4 DB2 8.2 Migration tool:IBM DB2 Migration Toolkit 1.3I. Table migration 1. Index length limit In DB2, the maximum length of a field corresponding to a single index is 1024 characters. Table Name:T_BIZPROC_INST_PARAM, T_BIZPROC_INST_ACTIVITY_PARAM Solution: (1) create different ind

Migrate data from MySQL to Oracle bitsCN.com 1. automatically increasing data type processing MYSQL has a data type that increases automatically. when you insert a record, you do not need to operate on this field. the data value i

Rmanconvert migrate win64-bit oracle to linuxoracle + asm manuscript startup mountalter database open read only;select open_mode from v$database;set serveroutput ondeclarev_check boolean;beginv_check:=dbms_tdb.check_db('Linux x86 64-bit',dbms_tdb.skip_none);end;/declarev_ext boolean;beginv_ext:=dbms_tdb.check_external;end;/select name from v$database;rman target /convert database new database 'lixora'transp

How to migrate sqlserver data to the mysql database and precautions: sqlservermysql During project development, sometimes the database used at the beginning of the project is SQL Server, and the stored database is changed to MySQL, so the data of SQL Server needs to be migrated to MySQL. The following is an SQL Server database migration method compiled daily by x

Function: Create stored procedures, create/delete 200 + table spaces/Users through plsql, data migration Scope of application: Table space is more, data is larger than data migration. This database will gradually be put into a separate instance. There is already a library of more than 1TB of data, such as csb221. To

log of the last Test SYS@ilndb1 > select name from V$database@Dblink_datapump; NAME---------ilndb dblink Guide Library process:1, create Dblink in the client database and the directory where you want to save the data file: Create public link Dblink_datapump connect to system identified by Clic1234 U Sing '10.24.51.12:1521/ilndb '; Select name from v$database@Dblink_datapump; Create or replace directory Expdp_dir as '/

Migrate SQL server data to mysql and sqlmysql The newly added project is just getting started, and many technologies have not yet been finalized. Originally, the team lead decided to use SQL server. These days they have been busy designing databases, creating tables, and writing stored procedures, I feel familiar, but yesterday I followed the team lead to participate in the Seminar on our project. I was r

DocumentThe document is the core concept of MongoDB, which is essentially a kind of JSON-bson-formatted data.Bson is a JSON-like binary format data that can be understood to add some new data types based on JSON, including Yue, Int32, Int64, and so on.Bson is composed of a set of group key-value pairs, which has the characteristics of lightness

the problem or a user-configured issue. Let's take a closer look at MongoDB's data security mechanism to better understand why there is a problem with data loss and how to properly configure MongoDB to keep the data safe. MongoDB data