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  • <div><p>The problem ...<p>This commit fixes that, so the end callback is called only when the websql transaction is actually finished.</p><p>该提问来源于开源项目:orbitaloop/WebSqlSync</p></div>
  • -define(MAX_TRANSACTION_RESTARTS, 10). 此配置在ejabberd ejabberd_odbc.erl中   =ERROR REPORT==== 2010-12-04 08:27:52 === ...:ejabberd_odbc:387) : SQL transaction restarts exceeded ** R...

    -define(MAX_TRANSACTION_RESTARTS, 10).

    此配置在ejabberd ejabberd_odbc.erl中

     

    =ERROR REPORT==== 2010-12-04 08:27:52 ===

    E(<0.345.0>:ejabberd_odbc:387) : SQL transaction restarts exceeded

    ** Restarts: 2

    ** Last abort reason: "query timed out"

    ** Stacktrace: [{ejabberd_odbc,sql_query_t,1},

                    {odbc_queries,'-get_and_del_spool_msg_t/2-fun-0-',1},

                    {ejabberd_odbc,outer_transaction,3},

                    {ejabberd_odbc,session_established,3},

                    {p1_fsm,handle_msg,10},

                    {proc_lib,init_p_do_apply,3}]

    ** When State == {state,<0.347.0>,mysql,30000,"testrsa.igrslabdns.com",

                            1000000000000,

                            {0,{[],[]}}}

    展开全文
  • SQL TRANSACTION 事物

    2015-06-29 21:10:00
    1 --SELECT @@error // 全局...3 BEGIN TRANSACTION 4 TRUNCATE TABLE cfb 5 SAVE TRANSACTION a 6 DELETE from ksbmb 7 ROLLBACK TRANSACTION a 返回到a的位置 cfb 清空了 但ksmbm 没有执行 转载于:ht...
    1 --SELECT @@error  // 全局错误  默认是0 
    2 
    3 BEGIN TRANSACTION 
    4 TRUNCATE TABLE cfb
    5 SAVE TRANSACTION a 
    6 DELETE from ksbmb 
    7 ROLLBACK  TRANSACTION a   返回到a的位置  cfb  清空了 但ksmbm 没有执行

     

    转载于:https://www.cnblogs.com/xh0626/p/4608512.html

    展开全文
  • First of all, know that Transaction::release() releases the transaction object and related resources allocated by McoSql, but not by the eXtremeDB runtime. So the Transaction::release() method has to

    First of all, know that Transaction::release() releases the transaction object and related resources allocated by McoSql, but not by the eXtremeDB runtime. So the Transaction::release() method has to be called after any way to finish the transaction ( commit/release ). For example, see this snippet from our sample: “samples/native/sql/api/sql-03-transactions/mvcc/main.cpp”:

    ...
    void task1( sample_task_t * descriptor )
    {
      int rc;
      uint4 i;
      McoSqlSession session( &engine );
      SqlEngineAllocatorContext ctx(&session);
      Transaction* trans = session.database()->beginTransaction(Transaction::ReadWrite, 0, isolation_level);
      try {
          for (i = 0; i < (uint4)n_iterations; i++)
          {
              StructB a;
              char tag[MAX_TAG_LENGTH+1];
              a.tag = tag;
              a.ui4 = i;
              sprintf(a.tag, "\t\tStream 1, rec %u\n", i);
              mem_write(a.tag);
              //rc = pEngine->executeStatement("insert into A %r", a);
              rc = session.executeStatement(trans, "insert into A %r", &a);
              sample_sleep(nap_duration1);
          }
      } catch (McoSqlException &err) {
          mem_write("ERROR: ");
          mem_write(err.getMessage()->cstr());
          trans->rollback();
     
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  • Transaction is a mechanism to ensure a bunch of database operations be performed in an atomic way. Either all of the operations succeed(committed) or nothing will be persisted(rollback)....

    Introduction
    Transaction is a mechanism to ensure a bunch of database operations be performed in an atomic way. Either all of the operations succeed(committed) or nothing will be persisted(rollback). By default, a sql statement will begin a transaction if there is no transaction exists in the connection. And it will end manually , or some exception or error happens which can cause the transation be rolled back.


    There are four types of transaction isolation level exist based on the subsequent read result in simultanious sessions. I list them in the table below:

    Dirty read (Uncommitted update and insertion) Non-repeatable read(committed update and insertion) phantom read(insertion)
    Uncommitted read Y Y Y
    Committed read N/A Y Y
    Non-repeatable N/A N/A Y
    Serializable N/A N/A N/A

     

    展开全文
  • T-SQL Transaction Template

    千次阅读 2012-01-20 12:35:15
    -- Transaction Template Begin-- BEGIN TRY  BEGIN TRANSACTION Subs_Import  BEGIN  Select 1  END  IF (@@ERROR  BEGIN  ROLLBACK TRANSACTION  END  ELSE  BEGIN  Commit ...
  • WARNING OGG-00869 Aborting BATCHSQL transaction

    千次阅读 2017-06-13 14:20:39
    由于处理ogg-01031,详见 找到目标端的复制进程后,stop该进程,报等待...2017-06-13 11:06:51 INFO OGG-01139 BATCHSQL resumed, recovered from error. 2017-06-13 11:14:02 WARNING OGG-00869 Aborting BATCHSQL
  • 正在听郭德纲相声,同事突然问用Linq to Sql 怎么实现一个Transaction,当时随口说了一句“如果SQL语句比较复杂就用一个存储过程实现吧“。以前也多少了解过Linq to Sql,也简单的执行一此数据库操作,但对Linq to ...
  • 昨天在帮助一个客户检查他的SQL Server数据库整体情况。发现都还好,除了日子文件特别大,46G,而磁盘也就48G左右。如果日子文件因为空间不够而不能再增长了,那数据库就停止了。情况比较紧急。   ...
  • transaction sql

    2019-09-20 17:46:46
    transaction sql Begin transaction use Test insert into Student values('004','name1',30) save tran my_sa delete from Student where...
  • sql事务Transaction

    2016-08-25 09:58:00
    sql事务Transaction 转载于:https://www.cnblogs.com/loweringye/p/5805612.html
  • SQL SERVER TRANSACTION

    千次阅读 2014-01-23 14:45:45
    SQL SERVERTRANSACTION 开启事务begintransaction transaction_name 标记一个显式本地事务的起始点。BEGINTRANSACTION使 @@TRANCOUNT按 1递增。 虽然 BEGIN TRANSACTION 启动一个本地事务,...
  • sql server transaction

    2011-12-16 17:51:00
    仔细研究了下,发现sql server里面的explicit transaction还是有点复杂的。以下是有些总结: · Commit transaction 会提交所有嵌套的transaction修改。但是如果嵌套的transaction里面有rollback tran to save point...
  • SqlTransaction

    2014-03-07 15:43:00
    BEGINTRANSACTION--开始事务 DECLARE@errorSunINT--定义错误计数器 SET@errorSun=0--没错为0 UPDATEaSETid=232WHEREa=1--事务操作SQL语句 SET@errorSun=@errorSun+@@ERROR--累计是否有错 ...
  • 基本用法 -- Syntax for SQL Server and Azure SQL ...SET TRANSACTION ISOLATION LEVEL { READ UNCOMMITTED | READ COMMITTED | REPEATABLE READ | SNAPSHOT | SERIALIZABLE } 区别 因为SQL Ser...
  • 用事务回滚来调试SQL,可以避免错误操作对数据库的影响.MARK. CodeBEGINTRANSACTIONSAVETRANSACTIONStartOrder;--hereinsertordeletedata--IF@@ERROR<>0ROLLBACKTRANSACTIONStartOrder;IF1<>0ROLLBA.....
  • sqltransaction用法

    2014-10-29 14:57:23
    begin try begin transaction  xxx  xxx commit transaction end try begin catch rollback transaction end catch
  • SQL Server Transaction

    2013-10-30 11:08:13
    语句的执行过程:SQL Server把将要做什么写入log 文件(On Disk)->执行操作 -> 将完成操作写入log 如果Server执行失败,那么待事务被提交并且写入log 后,ROLLBACK TRAN就会自动执行 这里有必要对Server 执行...
  • This would not be a problem if the Gorp Transaction type provided access to the underlying sql.Transaction, but unfortunately it does not. What do you think about making that a public member, or ...
  • begin transaction declare @parameter type  select @parameter = count(*) from table_name where A = ' ' if @parameter1 &lt;&gt; 0 begin 执行sql end else begin 执行sql end commit...
  • 分享我們家Wilson整理的MS清Transaction Log的Script,因為SQL的每個版本都不同,所以在此記錄一下。   补充说明一下:做以下操作前请先备份数据库 SQL 7.0/2000: BACKUP TRANSACTION DBName WITH TR
  • T-sqlTransaction模板

    千次阅读 2011-03-02 15:42:00
    T-sqlTransaction模板
  • SQL Server save transaction

    2019-06-15 20:33:00
    SQL Server save transaction 准备:  create table Nums(X int);  目的:只向表中插入一行。 ------------------------------------------------------------------------------------------------------...
  • Transaction-SQL 游标

    2015-07-10 17:06:00
    该游标是基于Declare Cursor 语法,主要用于Transaction-SQL脚本、存储过程以及触发器中。Transaction-SQL游标在服务器处理由客户端发送到服务器的Transaction-SQL语句。 在存储过程或触发器中使用Transaction-SQL...
  • SQL Server使用transaction-log来记录用户对数据的所有操作(包括DML和DDL,另外log中还有一些数据库自动发生的事件,但不包含查询语句)。因此当发生事务回滚等情况时,SQL Server通过transaction-log中记录的数...
  • LINQ To SQLTransaction

    2008-05-22 14:16:00
    LINQ To SQLTransaction 文/黃忠成 不管你是由我的書中,或是MSDN、網站處得知,LINQ to SQL之DataContext於SubmitChanges函式執行時,就算不指定Transaction,DataContext都會自動啟動一個Transaction...

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