简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Database > Mysql Tutorial > body text

ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

WBOY
Release： 2016-06-07 17:07:45
Original
2769 people have browsed it

ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

ORA-01758: 要添加必需的 (NOT NULL) 列, 则表必须为空

[日期：2011-12-04] 来源：Linux社区  作者：lwei_998 [字体：]

给一个已经有记录的表添加新列，，并指定not null 时报ORA-01758。怎么办？

1.给新添加的列指定默认值。

2.清空表中的记录再添加新列。

实验如下：

linux

Related labels：
oracle database
source：php.cn
Previous article：Oracle调优专家秘籍 Next article：Oracle通过PL/SQL数据泵导出导入数据的命令
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
Regular expression to match words I have a script where I am trying to match new job names with existing job names in a data...
From 2024-04-06 21:24:04
0
1
606
Calculate the sum of fields in another table using MySQL SQL query I have a schema like this: User table with attributes "user_id" and "userna...
From 2024-04-06 19:39:29
0
1
441
MySQL: "Select text from... as <variable here or subquery>" I have the following table with the following data: id text language 1 german text german ...
From 2024-04-06 19:25:54
0
2
529
MySQL gets data from multiple tables I have a eg_design table which contains the following columns: and eg_domains table which ...
From 2024-04-06 18:42:44
0
2
479
Group MySQL results by ID for looping over I have a table with flight data in mysql. I'm writing a php code that will group and displ...
From 2024-04-06 17:27:56
0
1
406
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！