このページはEtoJ逐語翻訳フィルタによって翻訳生成されました。

翻訳前ページへ


Constants' Group TransactionIsolation
Language

The 解放する/自由な and Open 生産性 控訴
解放(する)d: Apache OpenOffice 4.1.15

API

SDK

Tips ‘n’ Tricks

Miscellaneous


:: com :: sun :: 星/主役にする :: sdbc ::

constants group TransactionIsolation
Description
distinguishes different possible 処理/取引 孤立/分離 levels.
Developers Guide
Database - Using DBMS Features - 処理/取引 扱うing

Constants
NONE 示すs that 処理/取引s are not supported.  
READ_UNCOMMITTED Dirty reads, 非,不,無-repeatable reads and phantom reads can occur. This level 許すs a 列/漕ぐ/騒動 changed by one 処理/取引 to be read by another 処理/取引 before any changes in that 列/漕ぐ/騒動 have been committed (a "dirty read"). If any of the changes are rolled 支援する, the second 処理/取引 will have retrieved an 無効の 列/漕ぐ/騒動.  
READ_COMMITTED Dirty reads are 妨げるd; 非,不,無-repeatable reads and phantom reads can occur. This level only 禁じるs a 処理/取引 from reading a 列/漕ぐ/騒動 with uncommitted changes in it.  
REPEATABLE_READ Dirty reads and 非,不,無-repeatable reads are 妨げるd; phantom reads can occur. This level 禁じるs a 処理/取引 from reading a 列/漕ぐ/騒動 with uncommitted changes in it, and it also 禁じるs the 状況/情勢 where one 処理/取引 reads a 列/漕ぐ/騒動, a second 処理/取引 alters the 列/漕ぐ/騒動, and the first 処理/取引 rereads the 列/漕ぐ/騒動, getting different values the second time (a "非,不,無-repeatable read").  
SERIALIZABLE Dirty reads, 非,不,無-repeatable reads and phantom reads are 妨げるd. This level 含むs the 禁止s in REPEATABLE_READ and その上の 禁じるs the 状況/情勢 where one 処理/取引 reads all 列/漕ぐ/騒動s that 満足させる a WHERE 条件, a second 処理/取引 挿入するs a 列/漕ぐ/騒動 that 満足させるs that WHERE 条件, and the first 処理/取引 rereads for the same 条件, retrieving the 付加 "phantom" 列/漕ぐ/騒動 in the second read.  
Constants' 詳細(に述べる)s
NONE
const long NONE = 0;
Description
示すs that 処理/取引s are not supported.
READ_UNCOMMITTED
const long READ_UNCOMMITTED = 1;
Description
Dirty reads, 非,不,無-repeatable reads and phantom reads can occur. This level 許すs a 列/漕ぐ/騒動 changed by one 処理/取引 to be read by another 処理/取引 before any changes in that 列/漕ぐ/騒動 have been committed (a "dirty read"). If any of the changes are rolled 支援する, the second 処理/取引 will have retrieved an 無効の 列/漕ぐ/騒動.
READ_COMMITTED
const long READ_COMMITTED = 2;
Description
Dirty reads are 妨げるd; 非,不,無-repeatable reads and phantom reads can occur. This level only 禁じるs a 処理/取引 from reading a 列/漕ぐ/騒動 with uncommitted changes in it.
REPEATABLE_READ
const long REPEATABLE_READ = 4;
Description
Dirty reads and 非,不,無-repeatable reads are 妨げるd; phantom reads can occur. This level 禁じるs a 処理/取引 from reading a 列/漕ぐ/騒動 with uncommitted changes in it, and it also 禁じるs the 状況/情勢 where one 処理/取引 reads a 列/漕ぐ/騒動, a second 処理/取引 alters the 列/漕ぐ/騒動, and the first 処理/取引 rereads the 列/漕ぐ/騒動, getting different values the second time (a "非,不,無-repeatable read").
SERIALIZABLE
const long SERIALIZABLE = 8;
Description
Dirty reads, 非,不,無-repeatable reads and phantom reads are 妨げるd. This level 含むs the 禁止s in REPEATABLE_READ and その上の 禁じるs the 状況/情勢 where one 処理/取引 reads all 列/漕ぐ/騒動s that 満足させる a WHERE 条件, a second 処理/取引 挿入するs a 列/漕ぐ/騒動 that 満足させるs that WHERE 条件, and the first 処理/取引 rereads for the same 条件, retrieving the 付加 "phantom" 列/漕ぐ/騒動 in the second read.
最高の,を越す of Page

Apache Software Foundation

Copyright & License | Privacy | 接触する Us | 寄付する | Thanks

Apache, OpenOffice, OpenOffice.org and the seagull logo are 登録(する)d trademarks of The Apache ソフトウェア 創立/基礎. The Apache feather logo is a trademark of The Apache ソフトウェア 創立/基礎. Other 指名するs appearing on the 場所/位置 may be trademarks of their 各々の owners.