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【Oracle Times Ten】用ttisql从oracle中映射表到timesten

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Release: 2016-06-07 17:41:56
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我感觉timesten比较猛的一点是,可以直接通过ttisql把整个表加载到timesten缓存数据库中。下面是我做的一个例子,分享给大家。1.在oracle中建立一张表“test”。

我感觉timesten比较猛的一点是,可以直接通过ttisql把整个表加载到timesten缓存数据库中。下面是我做的一个例子,香港空间,分享给大家。

1.在oracle中建立一张表“test”。

CREATE TABLE "LION"."TEST" ( "ID" number PRIMARY KEY NOT NULL, "NAME" varchar2(20 byte), "NOTE" varchar2(20 byte), "MARK" varchar2(20 byte) );

2.在这张表中插入500000条数据。

3.映射到timesten中。

(1)连接timesten:

C:\Users\lion>ttisql "DSN=mytt;UID=lion;PWD= ;OraclePWD=orcl"; Copyright (c) 1996-2011, Oracle. All rights reserved. Type ? or "help" for help, type "exit" to quit ttIsql. connect "DSN=mytt;UID=lion;PWD= ;OraclePWD=orcl;"; Connection successful: DSN=mytt;UID=lion;DataStore=D:\oracle\timesten\odbc;Datab aseCharacterSet=ZHS16GBK;ConnectionCharacterSet=ZHS16GBK;Temporary=1;DRIVER=D:\o racle\timesten\bin\ttdv1122.dll;LogDir=D:\oracle\timesten\log;TypeMode=0;PLSCOPE _SETTINGS=IDENTIFIERS:NONE;DDLReplicationLevel=1; (Default setting AutoCommit=1)

(2)使用ttisql语句的createandloadfromoraquery命令载入oracle中的root.test表

Command> createandloadfromoraquery test 2 select * from root.test;

(3)稍等几秒钟提示载入成功:

Command> createandloadfromoraquery test 2 select * from root.test; Mapping query to this table: CREATE TABLE "LION"."TEST" ( "ID" number NOT NULL, "NAME" varchar2(20 byte), "NOTE" varchar2(20 byte), "MARK" varchar2(20 byte) ) Table test created 500000 rows loaded from oracle.

注意:如果没有提示成功,香港服务器,而是提示如下信息时,参考我另外一篇博客:《异常处理》

Command> createandloadfromoraquery test 2 select * from root.test; Mapping query to this table: CREATE TABLE "LION"."TEST" ( "ID" number NOT NULL, "NAME" varchar2(20 byte), "NOTE" varchar2(20 byte), "MARK" varchar2(20 byte) ) Table test created 802: Database permanent space exhausted 6220: Permanent data partition free space insufficient to allocate 33296 bytes of memory The command failed.

(4)使用ttisql查询导入timesten的test表数据:

Command> select count(*) from test; 1 row found. Command> select * from test where id 20 rows found.

(5)使用java调用timesten查询刚刚导入的test表(如果有兴趣查看源代码,香港服务器,可以看我另外一篇博客:Java连接Times Ten)

 【Oracle Times Ten】用ttisql从oracle中映射表到timesten


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