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Insert auto increment primary key to existing table
I am trying to alter a table which has no primary key nor auto_increment column. I know how to add an primary key column but I was wondering if it's possible to insert data into the primary key column automatically (I already have 500 rows in DB and want to give them id but I don't want to do it man...
How can I get the corresponding table header (th) from a table cell (td)?
Given the following table, how would I get the corresponding table header for each td element?
7 Answers
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Run MySQLDump without Locking Tables
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Does the --lock-tables=false option work?
According to the man page, if you are dumping InnoDB tables you can use the --single-transaction option:
--lock-tables, -l
Lock all tables before dumping them. The tables are locked with READ
LOCA...
Space between two rows in a table?
...ements with the class spaceUnder. This will make it possible to use nested tables. (Cell C and D in the example code.) I'm not too sure about browser support for the direct child selector (think IE 6), but it shouldn't break the code in any modern browsers.
/* Apply padding to td elements that ...
Convert json data to a html table [closed]
Is there any jQuery or javascript library that generates a dynamic table given json data?
I don't want to define the columns, the library should read the keys in the json hash and generate columns.
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How to deal with page breaks when printing a large HTML table
I have a project which requires printing an HTML table with many rows.
12 Answers
12
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html tables: thead vs th
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The <thead> tag is used to group the header content in an HTML table.
The thead element should be used in conjunction with the tbody and tfoot elements.
More : thead
You use <thead> to encapsulate an entire row (or rows) to designate them as the Table Header.
According to the ...
Select count(*) from multiple tables
How can I select count(*) from two different tables (call them tab1 and tab2 ) having as result:
18 Answers
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CSS table layout: why does table-row not accept a margin?
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See the CSS 2.1 standard, section 17.5.3. When you use display:table-row, the height of the DIV is solely determined by the height of the table-cell elements in it. Thus, margin, padding, and height on those elements have no effect.
http://www.w3.org/TR/CSS2/tables.html
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...meant that you use a query like this: "start transaction; create temporary table temporary_table as select * from test where false; copy temporary_table from 'data_file.csv'; lock table test; update test set data=temporary_table.data from temporary_table where test.id=temporary_table.id; insert into...