db2Sink.md

1.格式：

CREATE TABLE tableName(
    colName colType,
    ...
    colNameX colType,
    [primary key (colName)]
 )WITH(
    type ='db2',
    url ='jdbcUrl',
    userName ='userName',
    password ='pwd',
    tableName ='tableName',
    parallelism ='parllNum'
 );

2.支持版本

db2 9.X

3.表结构定义

参数名称	含义
tableName	db2表名称
colName	列名称
colType	列类型 colType支持的类型
primary key	updateMode为UPSERT时，需要指定的主键信息，不需要和数据库一致

4.参数：

参数名称	含义	是否必填	默认值
type	结果表插件类型，必须为db2	是
url	连接db2数据库 jdbcUrl	是
userName	db2连接用户名	是
password	db2连接密码	是
tableName	db2表名称	是
schema	db2表空间	否
parallelism	并行度设置	否	1
batchSize	flush的大小	否	100
batchWaitInterval	flush的时间间隔，单位ms	否	1000
allReplace	true:新值替换旧值	否	false
updateMode	APPEND：不回撤数据，只下发增量数据，UPSERT：先删除回撤数据，然后更新	否	结果表设置主键则为UPSERT

5.样例：

回溯流删除

CREATE TABLE source1 (
    id int,
    name VARCHAR
)WITH(
    type ='kafka11',
    bootstrapServers ='172.16.8.107:9092',
    zookeeperQuorum ='172.16.8.107:2181/kafka',
    offsetReset ='latest',
    topic ='mqTest03',
    timezone='Asia/Shanghai',
    topicIsPattern ='false'
 );



CREATE TABLE source2(
    id int,
    address VARCHAR
)WITH(
    type ='kafka11',
    bootstrapServers ='172.16.8.107:9092',
    zookeeperQuorum ='172.16.8.107:2181/kafka',
    offsetReset ='latest',
    topic ='mqTest04',
    timezone='Asia/Shanghai',
    topicIsPattern ='false'
);


CREATE TABLE MyResult(
    id int,
    name VARCHAR,
    address VARCHAR,
    primary key (id)
)WITH(
    type='db2',
    url='jdbc:db2://172.16.10.251:50000/mqTest',
    userName='DB2INST1',
    password='abc123',
    tableName='USER_INFO2',
    schema = 'DTSTACK',
    updateMode = 'upsert',   // 设置 primary key则默认为upsert
    batchSize = '1'
);

insert into MyResult
select 
	s1.id,
	s1.name,
	s2.address
from 
	source1 s1
left join
	source2 s2
on 	
	s1.id = s2.id

DB2结果表建表语句：

CREATE TABLE "DTSTACK "."USER_INFO2"  (
   	  "ID" INTEGER , 
   	  "NAME" VARCHAR(50 OCTETS) , 
   	  "ADDRESS" VARCHAR(50 OCTETS) )   
   	 IN "USERSPACE1"  
   	 ORGANIZE BY ROW
;

GRANT CONTROL ON TABLE "DTSTACK "."USER_INFO2" TO USER "DB2INST1" 
;

数据结果：

向Topic mqTest03 发送数据 {"name":"maqi","id":1001} 插入 (1001,"maqi",null)

向Topic mqTest04 发送数据 {"address":"hz","id":1001} 删除 (1001,"maqi",null) 插入 (1001,"maqi","hz")