SELECT * from employees WHERE NOT EXISTS (SELECT name FROM eotm_dyn) So basically I have one table with a list of employees and their details. Then another table with some other details, including their name. Where there name is not in the eotm_dyn table, meaning there is no entry for them, I would like to see exactly who they are, or in other words, see what exactly is missing. The above ...
I was under the impression that I could get the value of a select input by doing this $(this).val(); and applying the onchange parameter to the select field. It would appear it only works if I ref...
When I perform SELECT * FROM table I got results like below: 1 item1 data1 2 item1 data2 3 item2 data3 4 item3 data4 As you can see, there are dup records from column2 (item1 are dupped). So how co...
This is a sample code to select all records from a table. Can someone show me how to select the last record of that table? select * from table When I use: SELECT * FROM TABLE ORDER BY ID DESC LIMI...
I am trying to replicate what you can see here in this image. I want to be able to either type in the text field above the box or just click on the option directly. What would be the best way t...
In the table, one customer like John Smith can have multiple addresses. I need the SELECT query for this table to return only first row found where there are duplicates in 'CName'. For this table it should return all rows except the 3rd (or 1st - any of those two addresses are okay but only one can be returned). Is there a keyword I can add to the SELECT query to filter based on whether the ...
You can select on any attribute and its value by using the attribute selector [attributename=optionalvalue], so in your case you can select the option and set the selected attribute.
SELECT * FROM TABLE WHERE ID IN (id1, id2, ..., idn) My question here is. What happens if n is very big? Also, what about performance? 2) Writing a query using OR
I'm looking for an efficient way to convert rows to columns in SQL Server, I heard that PIVOT is not very fast, and I need to deal with lot of records. This is my example: Id Value ColumnName 1 John
