Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 5 years ago.
Improve this question
I´m not sure if my title is the best, I'll explain my problem:
I have a table t_teamschedule, that keeps the data about who is playing and when. There are another table t_tvts that keeps what tv channel is going to transmit the game. I'm making a report to show this information.
I have a problem with those games that are not going to be in any tvchannel, I want that games in the report, with the tv column empty, but they just doesn't appear. I was looking if there are any way to put some default value so if the select give me no value it add anyway the game, but I don't find anything like that.
Replace your inner join in your query between the two tables with a left outer join.
In the query designer, that means a small arrow at the junction between the t_tvts table and the line that shows the join.
Related
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 4 years ago.
Improve this question
I know there are threads with the answer for this question but as a beginner I am having a really hard time understanding the difference between these two. I am learning Access and have not learnt about SQL statements yet. Most explanation to this question consists of SQL code that I do not understand. If you could explain the difference for a beginner that would be great.
If you have a combobox in your form, it will both have a row source and a control source. The control source is the field in the underlying table where the actual values are stored. The row source is the source of the list of values to select from.
Example: You got a table with flowers. One field is color. You want to limit which colors to enter for the flowers. The you make a table called flower_colors.
In your flower form, you then have a combobox. Its control source will be colors from the table flower and the row source will be flower_colors.
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 7 years ago.
Improve this question
I am making a tablature website and I wonder which is the best way to store tabs in the database.
Here is an example:
------------------------------------------------------------0------------------------------
-------------1-0---------------------1-0-----------0-1-1-1-----3-1-0-----------------------
0-0-0-2-2-2------2-0-----0-0-0-2-2-2-----2-0---0-2-------------------2-------2-0---0-------
-----------------------------------------------------------------------4-2-0-----4---------
-------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------
If it was me, and it is exactly that way, (I. E. 1-2-3) I'd go for the following:
Create table tabs (
Songid varchar(36) -- uuid or name, fk to the song
String int,
Position int
)
Depending on the server side language, you could theoretically retrieve and display them, separated by the dashes.
It'd be a bit tricky to get right, but what you would want, is to have a while loop or cursor display the number, or dash if there is no number at the given position, for the given string.
Does that make sense? I can try and elaborate, but it would depend on the language the web server was using.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
I want to load data from database but how to get data in specific colmun
More Explanation:
lets say that we have a table called players, Then we have three columns "Username, Password and E-mail"
Now, if we want to select the email of the player who called "Nezo" how we can do it ?
This is a straightforward SELECT statement. I'd take some time to familiarize myself with the MySQL manual on SELECT, since it is among the most basic MySQL commands.
In this case, our select_expr (SELECT expression) is going to be the column from the table we're looking for, E-mail, and we're going to need to restrict the query to only look at the e-mail of the user named 'Nezo' using a WHERE clause:
SELECT `E-mail` FROM `players` WHERE `Username` = 'Nezo';
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 8 years ago.
Improve this question
I have a two table first is simple primary key based table and second table is keyvaluepair for maintaining records.
Now I want to get records from Table in a single object. If they come as comma separate it's good.
Suppose I have table
ID valueID.
When I will run select query I not want a list of rows. I want a single column (in a row) that I can get the information about all valueIds.
Could someone explain me how can I get them in one instead of list?
You probably want to use GROUP_CONCAT.
SELECT GROUP_CONCAT(valueID) FROM table
http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat
If you need both the ID and the valueID, you're better off sticking with an array.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 5 years ago.
Improve this question
I have several databases represents the companies we work.
In every database there are fields which we work on.
And in the fields area, there are field infos and our engineer who worked at that field.
I need to search all databases and filter with engineer names, to get a list of fields he worked.
I hope I could explain.
Any simple solution?
Nope. You're going to have to manually write queries to search each table in each database. The whole idea of database schemas and tables is that they are distinct wrappers for data, which can't be implicitly joined.