大约有 3,551 项符合查询结果（耗时：0.0150秒） [XML]
How to convert list to string [duplicate]
...o preserve single string quotes on your list items (for sending a query to SQL, for instance), you can do something like this. x = [1,2,3] y = "'" + "','".join(map(str, x)) + "'"
– tandy
Mar 5 '15 at 16:29
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How can I add comments in MySQL?
I want to add comment in SQL code. How can I do this? I'm using MySQL.
6 Answers
6
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GUI Tool for PostgreSQL [closed]
I am new to PostgreSQL database I just want to know is there any GUI Tool for PostgreSQL just like SQLYog for MySql
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Cast from VARCHAR to INT - MySQL
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Unsigned is working. From when did MySQL changed Integer datatype to Unsigned?
– Lenin Raj Rajasekaran
Aug 26 '12 at 1:36
20
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Rename a table in MySQL
Renaming a table is not working in MySQL
16 Answers
16
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How to delete a column from a table in MySQL
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Here's a working example.
Note that the COLUMN keyword is optional, as MySQL will accept just DROP IsDeleted. Also, to drop multiple columns, you have to separate them by commas and include the DROP for each one.
ALTER TABLE tbl_Country
DROP COLUMN IsDeleted,
DROP COLUMN CountryName;
This a...
Is there a way to “limit” the result with ELOQUENT ORM of Laravel?
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Not the answer you're looking for? Browse other questions tagged mysql laravel eloquent sql-limit or ask your own question.
Subtract one day from datetime
...am not certain about what precisely you are trying to do, but I think this SQL function will help you:
SELECT DATEADD(day,-1,'2013-04-01 16:25:00.250')
The above will give you 2013-03-31 16:25:00.250.
It takes you back exactly one day and works on any standard date-time or date format.
Try runn...
Deleting all rows from Cassandra cql table [duplicate]
...ommand to all the rows present in a cql table in cassandra like the one in sql?
1 Answer
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Ubuntu下CodeBlock开发环境配置 - C/C++ - 清泛网 - 专注C/C++及内核技术
...下：
sudo apt-get install libqt4-dev libqt4-debug libqt4-gui libqt4-sql qt4-dev-tools qt4-doc qt4-designer qt4-qtconfig
启动CodeBlock，接下来，新建一个Qt4的工程（这里不作演示），如下：
当然，如果不作任何配置，此工程编译当然是通不过（找不...