No matter how Microsoft is doing in comparison with Google, Microsoft Office is still the most used application in software world. Other alternatives like OpenOffice and LiberOffice have failed to take off to challenge MS Office. What this mean to a…
I’m going to go over some methods to import data from text files into SQL Server today. The particular file I went out and grabbed is comma delimited and with a few qualifiers in it. It is a typical file you may get and a request made to import or ju…
In NetSuite SuiteScript, We usually do/implement export data to CSV, that's straight forward: Collect 'encoded' string to Array for column, join them with comma ',' to be a string. Collect each line's data same as column to push to the Array. Join al…
最近在思考和实践怎样应用重复数据删除技术到云存储服务中.找了些论文来读,其中<Avoiding the Disk Bottleneck in the Data Domain Deduplication File System>是鼎鼎大名的李凯教授出品,读来收益匪浅. 论文主要内容 Data Domain的去重存储系统是商业上大获成功的产品,从产品的角度来讲非常完善,其架构图如下: 去重存储系统在数据存储和重建的过程中,都需要频繁地访问数据块的索引,即图中的Segment Index.为了降低成…
BW数据库后台报错如下:F:\oracle\SBP\saptrace\diag\rdbms\sbp\sbp\trace ORA-01578: ORACLE data block corrupted (file # 29, block # 2889087)ORA-01110: data file 29: 'G:\ORACLE\SBP\SAPDATA2\SR3_18\SR3.DATA18'ORA-26040: Data block was loaded using the NOLOGGING opt…
Install: pip install pandas pip install matplotlib # check out the doc from site import pandas as pd import matplotlib.pyplot as plt from numpy import mean def load_df(symbol): return pd.read_csv("data/{0}.csv".format(symbol)) def get_max_close(…
由于一时手误输入了 DELETE FROM TABLE WHERE age REGEXP '\d';导致这个表的数据被删除 解决方法: 登录mysql,查看目前的binlog文件 mysql> show master status; +---------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_D…
Raw File Source & Raw File Destination一般用在当有某个package在导入数据或者处理数据需要花费非常长的时间的情况下,可以通过把一些处理好的数据先存到raw file里面,避免出现遇到错误而需要再重新来过的风险,起码可以去Raw file source里面找到数据而不需要从头开始.…
1 SELECT SUM(DATA_LENGTH)+SUM(INDEX_LENGTH) FROM information_schema.tables WHERE TABLE_SCHEMA='database_name'; 结果是以字节为单位,除1024为K,除1048576为M. SELECT TABLE_NAME,DATA_LENGTH+INDEX_LENGTH,TABLE_ROWS FROM information_schema.tables WHERE TABLE_SCHEMA='…
use master go exec master..sp_MSforeachdb 'use [?]; IF (SELECT db_id(''?'')) > 4 and (SELECT DATABASEPROPERTYEX(''?'', ''Recovery'')) =''FULL'' BACKUP LOG [?] to disk = ''NUL''' WAITFOR Delay '00:10:00' exec master..sp_MSforeachdb 'use [?]; IF (SELEC…
Introduction External table is a special table in Netezza system, which could be used to import/export data between flat files and Netezza directly. Import data from external file to Netezza Grammar: CREATE EXTERNAL TABLE EXTERNAL_TABLE_TEST ( id in…