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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
... entries for drivers and line disciplines in
this directory, as shown in Table 1-11.
Table 1-11: Files in /proc/tty
..............................................................................
File Content
drivers list of drivers and the...
Hide/Show Column in an HTML Table
I have an HTML table with several columns and I need to implement a column chooser using jquery. When a user clicks on a checkbox I want to hide/show the corresponding column in the table. I would like to do this without attaching a class to every td in the table, is there a way to select an entir...
Making heatmap from pandas DataFrame
... and you're simply interested in adding color to represent the values in a table format, you can use the style.background_gradient() method of the pandas data frame. This method colorizes the HTML table that is displayed when viewing pandas data frames in e.g. the JupyterLab Notebook and the result ...
How can I let a table's body scroll but keep its head fixed in place?
I am writing a page where I need an HTML table to maintain a set size. I need the headers at the top of the table to stay there at all times but I also need the body of the table to scroll no matter how many rows are added to the table. Think a mini version of excel. This seems like a simple task bu...
How to move columns in a MySQL table?
Currently I am having the following MySQL table: Employees (empID, empName, department);
4 Answers
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MySQL: Insert record if not exists in table
...er way to do it, but you can actually do what you were attempting:
CREATE TABLE `table_listnames` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`address` varchar(255) NOT NULL,
`tele` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB;
Insert a record:
I...
Get list of databases from SQL Server
...
@Gia It does exist as a backwards compatablity view. msdn.microsoft.com/en-us/library/ms179900%28v=SQL.110%29.aspx
– Chris Diver
Aug 7 '11 at 22:26
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DROP IF EXISTS VS DROP?
...
Standard SQL syntax is
DROP TABLE table_name;
IF EXISTS is not standard; different platforms might support it with different syntax, or not support it at all. In PostgreSQL, the syntax is
DROP TABLE IF EXISTS table_name;
The first one will throw an...
How to show all privileges from a user in oracle?
...es granted directly to users
SELECT PRIVILEGE, OWNER AS OBJ_OWNER, TABLE_NAME AS OBJ_NAME, GRANTEE AS USERNAME, GRANTEE AS GRANT_TARGET, GRANTABLE, HIERARCHY
FROM DBA_TAB_PRIVS
WHERE GRANTEE IN (SELECT USERNAME FROM DBA_USERS)
UNION ALL
-- Object privileges gr...
How to remove an item from an array in AngularJS scope?
...I found out the reason... I use a chunk method to create two columns in my table by watching my $scope.items. Sorry!
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