I'm trying out the following query: SELECT A,B,C FROM table WHERE field LIKE 'query%' UNION SELECT A,B,C FROM table WHERE field LIKE '%query' UNION SELECT A,B,C FROM table WHERE field LIKE '%query%' GROUP BY B ORDER BY B ASC LIMIT 5 That's three queries stuck together, kindasorta. However, the result set that comes back reflects resul...
In light of the acrid responses to the intellectual property clause discussed in my previous question, I have to ask: why don't we have a programmers' union? There are many issues we face as employees, and we have very little ability to organize and negotiate. Could we band together with the writers', directors', or musicians' guilds, ...
I'm translating a library written in C++ to C#, and the keyword 'union' exists once. In a struct. What's the correct way of translating it into C#? And what does it do? It looks something like this; struct Foo { float bar; union { int killroy; float fubar; } as; } ...
Hi All, I have a very large table (8gb) with information about files, and i need to run a report against it that would would look something like this: (select * from fs_walk_scan where file_path like '\\\\server1\\groot$\\%' order by file_size desc limit 0,30) UNION ALL (select * from fs_walk_scan where file_path like '\\\\server1\\hro...
Warning: this is the actual code generated from my system: ;WITH RESULTS AS ( SELECT 1174 AS BatchRunID, 'STATINV' AS Program, m.APPL_CD, m.ALBASE, 'CountFocusRecords' AS Measure, COUNT(*) AS Value FROM [MISWork].[SX_FOCUS_NATIVE_200806] AS m WITH(NOLOCK) INNER JOIN MISProcess.SXProcessCatalog AS cat WITH(NOLOCK) ON cat.APPL_CD = m.APPL...
How do I fix that error once and for all? I just want to be able to do unions in MySQL. (I'm looking for a shortcut, like an option to make MySQL ignore that issue or take it's best guess, not looking to change collations on 100s of tables ... at least not today) ...
What alternatives do I have to implement a union query using hibernate? I know hibernate does not support union queries at the moment, right now the only way I see to make a union is to use a view table. The other option is to use plain jdbc, but this way I would loose all my example/criteria queries goodies, as well as the hibernate ma...
I'm implementing an audit log on a database, so everything has a CreatedAt and a RemovedAt column. Now I want to be able to list all revisions of an object graph but the best way I can think of for this is to use unions. I need to get every unique CreatedAt and RemovedAt id. If I'm getting a list of countries with provinces the union lo...
I have seen some declaration of a union inside a struct as follows. Example code given below. My questions is does it help in any memory savings(typical use for which a union is used for)? I do not see the benefit. typedef struct { int x1; unsigned int x2; ourstruct1 ov1; ourstruct1 ov2; union { str...
look at one of my header file which consists of a union template with 4 different structures. <#define MAX 3 union family { struct name /*for taking the name and gender of original member*/ { unsigned char *namess; unsigned int gender; union family *ptr_ancestor; /*this is a pointer to his ancestors detai...
I am working on turbo C on windows where char takes one byte.Now my problem is with the below union. union a { unsigned char c:2; }b; void main() { printf("%d",sizeof(b)); \\or even sizeof(union a) } This program is printing output as 2 where as union should be taking only 1 byte. Why is it so? for struct it is fine giving 1 byte bu...
Given a couple of simple tables like so: create table R(foo text); create table S(bar text); If I were to union them together in a query, what do I call the column? select T.???? from ( select foo from R union select bar from S) as T; Now, in mysql, I can apparently refer to the column of T as 'foo' -- the name ...
I'm selecting 1 field from 1 table and storing it into a temp table. Sometimes that table ends up with 0 rows. I want to add that field onto another table that has 20+ fields Regular union won't work for me because of the field # mismatch. Outer wont work for me because there is nothing to compare. NVL doesn't work on the first temp t...
Is there any good example to give the difference between a 'struct' and a 'union'? Basically I know that struct uses all the memory of its member and union uses the largest members memory space. Is there any other OS level difference? ...
How can I get a query which uses an OR in the WHERE clause to split itself into two queries with a UNION during compilation? If I manually rewrite it, the query using the UNION is 100x faster than the single query, because it can effectively use different indices in each query of the union. Is there any way I can make the optimizer use...
That is, if I had two or more sets, and I wanted to return a new set containing either: All of the elements each set has in common (AND). All of the elements total of each set (OR). All of the elements unique to each set. (XOR). Is there an easy, pre-existing way to do that? Edit: That's the wrong terminology, isn't it? ...
If I have a few UNION Statements as a contrived example: SELECT * FROM xxx WHERE z = 1 UNION SELECT * FROM xxx WHERE z = 2 UNION SELECT * FROM xxx WHERE z = 3 What is the default order by behaviour. The test data I'm seeing essentially does not return the data in the order that is specified above. I.e. the data is ordered, but I wan...
I have a basic "property bag" table that stores attributes about my primary table "Card." So when I want to start doing some advanced searching for cards, I can do something like this: SELECT dbo.Card.Id, dbo.Card.Name FROM dbo.Card INNER JOIN dbo.CardProperty ON dbo.CardProperty.IdCrd = dbo.Card.Id WHERE dbo.CardProperty.Id...
I have a List<List<int>>. I would like to convert it into a List<int> where each int is unique. I was wondering if anyone had an elegant solution to this using LINQ. I would like to be able to use the Union method but it creates a new List<> everytime. So I'd like to avoid doing something like this: List<int> allInts = new List<int>...
I have an annoying SQL statement that seem simple but it looks awfull. I want the sql to return a resultset with userdata ordered so that a certain user is the first row in the resultset if that users emailaddress is in the companies table. I have this SQL that returns what i want but i think it looks awful: select 1 as o, * from User...