欢迎进入Oracle社区论坛,与200万技术人员互动交流 >>进入 GG配置Oracle同步到SQLServer 源端目标端准备一张测试用的表。 Oracle源端: drop table ggmgr.t1; create table ggmgr.t1( id int primary key, name varchar2(50), time date); Sqlserver目
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GG配置Oracle同步到SQLServer
源端目标端准备一张测试用的表。 Oracle源端: drop table ggmgr.t1; create table ggmgr.t1( id int primary key, name varchar2(50), time date);
Sqlserver目标端: BEGIN TRANSACTION SET QUOTED_IDENTIFIER ON SET ARITHABORT ON SET NUMERIC_ROUNDABORT OFF SET CONCAT_NULL_YIELDS_NULL ON SET ANSI_NULLS ON SET ANSI_PADDING ON SET ANSI_WARNINGS ON COMMIT BEGIN TRANSACTION GO CREATE TABLE dbo.Table_1 ( id numeric(18, 0) NOT NULL, name nvarchar(40) NULL, time date NULL ) ON [PRIMARY] GO ALTER TABLE dbo.Table_1 ADD CONSTRAINT PK_Table_1 PRIMARY KEY CLUSTERED ( id ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] GO ALTER TABLE dbo.Table_1 SET (LOCK_ESCALATION = TABLE) GO COMMIT
在线持续同步表
Oracle端(配置extract进程) dblogin userid ggmgr,password oracle add trandata test.n
edit param e_erp extract e_erp userid ggmgr,password oracle setenv(ORACLE_SID=orcl) exttrail ./dirdat/dd table ggmgr.t1;
添加extract进程 add extract e_erp,tranlog,begin now 创建本地trail文件(并不是物理上真的创建),这个e_erp要之前就按这个名称添加了extract进程。 add exttrail ./dirdat/dd, extract e_erp
配置data pump进程 edit params d_erp extract d_erp userid ggmgr,password oracle rmthost 10.60.17.48,mgrport 7809 rmttrail D:\gg\dirdat\dd table ggmgr.t1;
add extract d_erp, exttrailsource /home/ora/gg/dirdat/dd add rmttrail D:\gg\dirdat\dd, extract d_erp
sqlserver端(配置replicat进程)
传送defgen工具定义文件
在SQLServe目标端,配置globals文件,指定用某个checkpoint表 /ggsci edit params ./GLOBALS CHECKPOINTTABLE MASTER.DBO.GG_CHECKPOINT_TAB
globals文件必须在在$GGS_HOME目录下,即软件根目录下,如果已经存在一个,可以先move走它。
为目标端配置checkpoint table dblogin sourcedb mssql(这个名称,是我们定义在ODBC数据源的那个代表某给sqlserver服务的描述符) add checkpointtable master.dbo.gg_checkpoint_tab
配置replicat进程 EDIT PARAMS R_ERP replicat r_erp sourcedb mssql sourcedefs D:\gg\dirdef\defgen.def reperror default,discard discardfile ./dirrpt/r_erp.dsc,append,megabytes 50 map ggmgr.t1, target fwy.dbo.t1;
discardfile参数推荐用这个参数,对于数据库拒绝的数据,会反映到这个文件中
增加replicat进程 add replicat r_erp, exttrail D:\gg\dirdat\dd
然后用defgen工具,将表定义传送到目标端
源端跑起来 start e_bom start d_bom 目标端 start replicat r_bom view report r_erp
如果想过滤某些列,什么都不用做。例如源端有7个字段,目标端有6个,同名字段自动匹配,没的会自动去掉。但如果字段名有些一样,有些不同呢? map ggmgr.t3, target fwy.dbo.t3, colmap ( usedefaults, --意味着字段名相同就用默认的复制 target_col = source_col); --目标表字段名是target_col,从源端的字段名是source_col的字段处抽取。

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.


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