goldengate 過濾對某張表的復制操作

在復制進程中配置下面的參數可以實現對一個用戶下的某些表進行過濾，在復制的時候
 
不做任何操作。
 
MAPEXCLUDE：
Valid for Replicat
Use the  MAPEXCLUDE parameter with the  MAP  parameter to explicitly  exclude tables from a 
wildcard specification. MAPEXCLUDE must precede all MAP  statements that  contain the table or tables being excluded.
 
注意：必須出現在map 的前面。
 
例如：
 
DDL include mapped &
EXCLUDE OBJNAME "HAOZG.TEST15"
DDLOPTIONS report
MAPEXCLUDE HAOZG.TEST15

DDL參數語法說明

在配置DDL復制時，需要在Extract 和Replicat 進程的配置文件里添加ddl屬性。下面簡要減少下這個屬性的常用參數，參考至《OGG Windows and UNIX Reference Guide》，英文較簡單，我也就不一字一句的翻譯了。
 DDL語句包含的主要語法如下：
 DDL [
 {INCLUDE | EXCLUDE}
 [, MAPPED | UNMAPPED | OTHER | ALL]
 [, OPTYPE <type>]
 [, OBJTYPE ‘<type>’]
 [, OBJNAME “<name>”]
 [, INSTR ‘<string>’]
 [, INSTRCOMMENTS ‘<comment_string>’]
 ]
 [...] 
 {INCLUDE | EXCLUDE} 
 Use INCLUDE and EXCLUDE to identify the beginning of an inclusion or exclusion clause.
 (1)  An inclusion clause containsfiltering criteria that identifies the DDL that this parameter will affect.
 (2)  An exclusion clause containsfiltering criteria that excludes specific DDL from this parameter.
 The inclusion orexclusion clause must consist of the INCLUDE or EXCLUDE keyword followed by anyvalid combination of other options of the parameter that is being applied.
 If you use EXCLUDE, you must create acorresponding INCLUDE clause.
 --如果要使用Exclude，那么必須先指定include。
 For example, the following is invalid:
 DDL EXCLUDE OBJNAME  “hr.*” 
 --這種語法是錯誤的。
 However, you can use either of thefollowing:
 DDL INCLUDE ALL,EXCLUDE OBJNAME “hr.*” 
 DDL INCLUDE OBJNAME “fin.*”  EXCLUDE  “fin.ss”         --正確語法
 An EXCLUDE takes priority over any INCLUDEs that contain the same criteria. You can use multipleinclusion and exclusion clauses.
 [, MAPPED | UNMAPPED | OTHER | ALL] 
 Use MAPPED, UNMAPPED,OTHER, and ALL to apply INCLUDE or EXCLUDE based on the DDL operation scope.
 1、MAPPED applies INCLUDE or EXCLUDE to DDL operations that are of MAPPED scope. MAPPED filtering is performed beforefiltering that is specified with other DDL parameter options.
 2、UNMAPPED applies INCLUDE or EXCLUDE to DDL operations that are of UNMAPPED scope.
 3、OTHER applies INCLUDE or EXCLUDE to DDL operations that are of OTHER scope.
 4、ALL applies INCLUDE or EXCLUDE to DDL operations of all scopes.
 
關於這四種scope的具體范圍詳見官方文檔《OGG Windows and UNIX Reference Guide》
 OPTYPE <type> 
 Use OPTYPE toapply INCLUDE or EXCLUDE to a specific type of DDL operation, such as CREATE, ALTER,and RENAME. For <type>, use any DDL command that is valid for thedatabase.
 For example, to include ALTER operations,the correct syntax is:
 DDL INCLUDE OPTYPE ALTER 
 OBJTYPE‘<type>’ 
 Use OBJTYPE to apply INCLUDE or EXCLUDE to a specific type of database object. For <type>,use any object type that is valid for the database, such as TABLE, INDEX, and TRIGGER.For an Oracle materialized view and materialized views log, the correct typesare snapshot and snapshot log, respectively. Enclose the name of the objecttype within single quotes.
 For example:
 DDL INCLUDE OBJTYPE ‘INDEX’
 DDL INCLUDE OBJTYPE ‘SNAPSHOT’ 
 For Oracle object type USER, do not use the OBJNAME option, because OBJNAME expects “owner.object” whereas USER only has aschema.
 OBJNAME“<name>” 
 Use OBJNAME toapply INCLUDE or EXCLUDE to the fully qualified name of an object, for example owner.table_name.This option takes a doublequoted string as input. You can use a wildcard onlyfor the object name.
 Example:
 DDL INCLUDE OBJNAME “accounts.*” 
 Do not use OBJNAME for the Oracle USER object,because OBJNAME expects “owner.object” whereas USER only has a schema.
 When using OBJNAMEwith MAPPED in a Replicat parameter file, the value for OBJNAME must refer tothe name specified with the TARGET clause of the MAP statement. For example,given the following MAP statement, the correct value is OBJNAME “fin2.*”.
 MAP fin.exp_*,TARGET fin2.*; 
 In the following example, a CREATE TABLE statementexecutes like this on the source:
 CREATE TABLE fin.exp_phone; 
 And like this on the target:
 CREATE TABLE fin2.exp_phone; 
 If a target owner is not specified in the MAP statement, Replicat maps it to the database user that is specified with the USERID parameter.
 For DDL that creates triggers, synonyms, and indexes, the value for OBJNAME must be the name of the base object, not the name of the trigger, synonym, or index.
 For example, to include the following DDL statement, the correct value is “hr.accounts,” not “hr.insert_trig.”
 CREATE TRIGGER hr.insert_trig ON hr.accounts; 
 For RENAME operations,the value for OBJNAME must be the new table name. For example, to include the following DDL statement, the correct value is “hr.acct.”
 ALTER TABLE hr.accounts RENAME TO acct; 
 The following is an example of how tocombine DDL parameter options.
  DDL    & 
 INCLUDE UNMAPPED & 
     OPTYPE alter & 
     OBJTYPE ‘table’ & 
     OBJNAME users.tab* & 
 INCLUDE MAPPED OBJNAME * & 
 EXCLUDE MAPPED OBJNAME temporary.tab"