我似乎无法理解这件事.
我有以下声明:
select aT.PieceNo, count(*)
from send_piece aT
where message_no in (7104, 7113)
and aT.Created > To_Timestamp('01-JAN-14 00:00:00', 'DD-MON-YY HH24:MI:SS')
group by aT.PieceNo;
在这个分组列表中,将有许多具有相同PieceNo和aT.Created值的记录。我只需要出示这些记录。
我试过了
group b
如何运行executemany来插入日期和日期时间而没有错误或01861-文字不匹配格式字符串?
DB结构
CREATE TABLE test_db(
id NUMBER GENERATED BY DEFAULT AS IDENTITY,
strMsg VARCHAR2(200) NOT NULL,
dt DATE NOT NULL,
dt_time TIMESTAMP(6) NOT NULL,
PRIMARY KEY(id)
);
Python
import cx_Oracle
import pandas as pd
from datetime imp
亚马逊网络服务上的EC2机器充满了多个linux头文件,目前磁盘空间已经100%满了。我运行了像apt-get autoremove这样的命令,但是它抛出了一个错误
No apport report written because the error message indicates a disk full error
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
我可以通过rm命令删除旧的标头吗?安全吗?如果我使用rm命令删除,我应该在那之后做任何清理吗?以下是headers列表:
du -h -d
我在找一个脚本,工具...对于linux,它可以找到所有文件和所有文件中的关键字,类似于OSX Finder (我不是在寻找具有相同Finder界面的应用程序,而只是相同的工作)
例如,如果我在OSX Finder中搜索"linux“,我会得到:
linux (directory with linux name)
linux-2.4.0 (directory with linux in name)
...
memory.h (file with linux in text)
...
command.c (file with linux in text)
...
so-08-filesy
无论我尝试做什么,无论是安装新软件,还是尝试sudo apt-获得升级。
有时我总是出错:(当我尝试sudo apt升级时)
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
linux-image-generic-hwe
如果我将cat命令保存到字符串中,然后执行它,那么我将得到一个错误。
linux# cmd="cat /data/test/test.tx* | grep toto"
linux# eval '$cmd'
cat: |: No such file or directory
cat: grep: No such file or directory
cat: toto: No such file or directory
即使是
linux# $cmd
cat: |: No such file or directory
cat: grep: No such file
我有点卡住了,还是个初学者。在升级过程中,我的dev/sda1 1似乎达到了容量。
sudo apt-get autoremove
给我:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
linux-image-extra-4.4.
当尝试执行此命令时:
scrapyd-deploy test -p project=myProject
我得到以下错误:
Traceback (most recent call last):
File "/usr/bin/scrapyd-deploy", line 269, in <module>
main()
File "/usr/bin/scrapyd-deploy", line 95, in main
egg, tmpdir = _build_egg()
File "/
我的文本文件如下所示:
If you are a software developer in your 20s or 30s, you've grown up in a world dominated by Linux. It has been a significant player in the data center for decades, and while it's hard to find definitive operating system market share reports, Linux's share of data center opera
我用的是Ubuntu12.04。最近我不能再安装任何东西了。我总是收到以下错误消息:
Setting up linux-image-3.2.0-34-generic (3.2.0-34.53) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Use of chdir('') or chdir(undef) as chdir() is deprecated at /var/lib/dpkg/inf/linux-image-3.2.0-34-generic.post
最近,我的笔记本电脑断电了几次,现在,每当我尝试执行包操作时,我都会得到以下错误代码。我试着在论坛上寻找一个解决方案,但这些要么需要一个包操作,要么没有人回答。“'uname -r”告诉我,我的内核是3.11.0-17-泛型,但似乎我的内核标题是3.11.0-18-泛型。我尝试引导旧的内核版本来修复这个问题,但是我遇到了同样的错误。有人知道我能做什么吗?
sudo apt-get install -f
Reading package lists... Done
Building dependency tree
Reading state information... Do
我正在试图通过终端升级(首选),但我仍然有这个错误,我还没有看到。我正在使用Ubuntu (Kubuntu16.04异种)。
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libgeoclue0 libxapian-1.3-5 python3-xapian1.3 vlc-plugin-notify vl
我使用BI发布服务器与Oracle融合19c
我试图查看一个1000个单词的VARCHAR字段(POH.NOTE_TO_VENDOR),如果它包含单词听觉和它后面的字符(substr的第一部分)不是空白的,即日期存在。然后,我想把所有的内容转换成另一个明智的日期,留下空白。
我可以让连接的子程序工作,并以字符串的形式显示它,无论是作为日期,还是如果它不在那里,那么值是'//‘,但是不能直接转换,因为如果值返回'//’,它不会转换这个日期。
, CASE WHEN SUBSTR(POH.NOTE_TO_VENDOR, (INSTR(POH.NOTE_TO_VENDOR,'
在尝试卸载php7.0时,我得到了以下错误:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'php7.0' is not installed, so not removed
The following packages were automatically installed and are no longer required:
linux-headers-4.4.0-92 linux-headers-4.4.
Hi,我试图在CentOS 7计算机上安装Networkit,但是我遇到了几个错误。您能告诉我错误/遗漏了什么和/或键入正确的命令以修复错误吗?
当前,我在我的机器上安装了以下内容,这对于Networkit的安装是必要的:
[JohnRambo@Machine ~]$ g++ --version
g++ (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditio