A virtual table that represents the data in one or more tables in an alternative way.

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120 views

Does Postgres support stored column labels that can be queried?

I'm not a DBA but seem to recall that there was a SQL database that stored column labels (preferred column headings that can be printed on reports). Does Postgres support labels such as these?
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1answer
8k views

Database user specified as a definer

I have a view in my database. problem is below Error SQL query: SELECT * FROM `lumiin_crm_prod`.`v_contact` LIMIT 1 ; MySQL said: 1449 - The user specified as a definer ('lumicrm'@'%') ...
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1answer
319 views

Create a VIEW that spans 3 tables

Sorry if the title is not clear - feel free to improve. Here are 3 tables (not all data is relevant to the question): CREATE TABLE `content` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, ...
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2answers
1k views

MySQL Reusing calculation in SELECT clause in a VIEW

I have an SQL query that has a simple date difference between NOW() and the creation date (is in the table). I need to reuse this again within the SELECT clause in a VIEW. Is this possible at all? ...
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1answer
28 views

PostgreSQL: a Login Role which can select from any Views

I need to write a SQL file which must do the following: create a role called 'selection' grant connect/usage to the current database grant select/execute to all views of all schemas (or at least on ...
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2answers
79 views

How to create a VIEW in SQL Server [closed]

I have a user table and I need to create a VIEW so a user can only see their own data/row. How could I achieve this? I have been searching online but I can't find anything useful User with user_id, ...
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1answer
21 views

Reusing views to do aggregate queries [closed]

I have created some views which give me some values. So some thing like the following select from a table of all ids gives me some thing like id1 id2 id3 id4 view1 gives me id1 2 id1 1 id1 3 ...
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1answer
34 views

How can I aggregate multiple results from another table using something like BOOL_AND?

I'm using PostgreSQL as my database. CREATE TABLE users ( id SERIAL NOT NULL, name TEXT NOT NULL, PRIMARY KEY (id), UNIQUE (name) ); CREATE TABLE groups ( id ...
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1answer
84 views

How can I create a bool column for a view based on the result of a statement?

I'm using PostgreSQL as my database. CREATE TABLE groups ( id SERIAL NOT NULL, name TEXT NOT NULL, PRIMARY KEY (id), UNIQUE (name) ); CREATE TABLE users ( id ...
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1answer
133 views

Selecting row multiple times, as specified by a field in that row

As part of an redesign, there's need for an different schema in one of the main tables in our database. The data in one of the existing tables will be kept as legacy data. To make the changeover ...
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1answer
136 views

create insertion rule on view returning id

I have a table private.products and a view public.products representing that table. And I want to create entries in private.products while inserting into view, it all works right, except that I also ...
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1answer
164 views

View collation are incomplete joins in couchdb

I was trying to create view collations following this tutorial: http://elegantcode.com/2012/02/14/view-collation-in-couchdb/ but I realize that the result was an array with 5 elements with 2 objects ...
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1answer
25 views

Collate view with old record on couchdb

I need to create a collate view with couch db but I dont want to use the current records, I want to use records of a specific revision. For example, lets imagine that I have an invoice with an array ...
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1answer
49 views

whether to merge partitioned table with only partially overlapping columns

I opted for MonetDB for my static data, but this might be less of a MonetDB-specific question about features than about RDBMS (or just SQL) in general. I have data with a few "cross-sectional" ...
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1answer
443 views

MySQL query using left join on two inline views not returning rows without values in second view

For some reason when I execute the code below I'm only getting results back that have sku in both views. I thought this should give me everything in the first view and add the content from the second ...
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1answer
535 views

Attributes from an hstore-column as separate columns in a view?

Let's assume we have a table where it has two columns, one an ID and one an hstore column, which stores key/value pairs. You could query that column as such: SELECT name, attributes->'device' as ...
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1answer
2k views

How to get performance benefits from a view vs subquery?

I'd like to know how/if anyone has gained significant performance benefits from using views instead of subqueries. I would prefer not to define a specific case, since I'm trying to establish good ...
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1answer
52 views

Best way to display number of overspent projects [closed]

I have the first view displayed as: CREATE VIEW Projects AS SELECT DepartmentName, COUNT(*)NumberOfProjects, OfficeNumber, Phone FROM DEPARTMENT AS D JOIN PROJECT ...
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2answers
321 views

CASE Statement - 1st case is being ignored

I have a table (usr_t_user_reg) in which I register all the users of the database. Now I want to create a view (usr_v_user_not_reg) which shows me all the users that I haven't registered yet or users ...
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1answer
444 views

How does security context propagate between schemas within a database?

We have a SQL Server 2008 database that contains two schema's. The owners of these schema's have been granted full SELECT permissions to all tables within each others ownership. I have created a ...
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3answers
2k views

Space used by databases file through linked server

I need to find out space used by database file for multiple databases through linked server(from one central server to multiple client SQL servers). I created view on client size, for all databases: ...
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1answer
55 views

Two dichotomy views of a table, and means to express this as a stored procudure?

There is a table events. Some relatively complex logic determines for each event whether it is archived. Then I need two more views: All archived events and all not archived events. How to express ...
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1answer
58 views

viewing Original Object under synonyms

I have certain synonyms in my schema which represent views from another schema. Now in oracle sqldeveloper, I am unable to see the actual SQL for those views but I see only an SQL like: CREATE OR ...
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1answer
435 views

Combining a tree structured Group model with its HABTM User model in one VIEW

I have a tree structured model Group which has the columns id, parent_id, name, lft and rght. I also have a model User which has the columns id, name and password. Group and User have a ...
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0answers
29 views

stored procedure to display error messages & success when a sp_refreshview is ran

How can I convert this stored procedure to display error messages when a sp_refreshview fails? I need to know which view failed. I would also like to know which "database_name.SQL_View_object_name" ...
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1answer
45 views

MySQL views performance for alias purposes

So I'm working on a Rails project and I have a legacy database, that is used by other applications, hence its structure cannot be modified. The problem is that table and column names do not follow the ...
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1answer
20 views

Missing view privileges in USER_TAB_PRIVS

I can't figure out how to view the grant privileges I've given users on views -- FIRSTUSER@SQL> create view remotetabletest 2 as select * from A_TABLE where PKEY = '123456' 3 / ...
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0answers
16 views

Computing View Table based on rows of other tables [duplicate]

I want to compute a specific view, but I think it will be more clear if I show an example: Given this one view: | Group | User | Type | Quantity | |-------|------|------|----------| | 1 | 13 | ...
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0answers
37 views

Syntax error when creating SCHEMABINDING view

I am trying to implement full text search in laravel 4, with mysql database. To implement full text search I need to create indexed view. When I am trying to create view with schemabinding i am ...
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1answer
23 views

Mysql: Create a view with multiple self joins without duplicates in result

Just to clarify i can't change the tables structure, so please leave out the "you should change your tables to this and that" answers, thank you. So i have a table entities_attributes_values where an ...
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0answers
35 views

Select sub columns from a view

I have a large view in Sql Server named ViewA which looks like Select ColumnA, ColumnB, ... ColumnZ FROM TableA Join TableB ON ... Join TableZ ON This view gives me exactly what I need in ...
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0answers
46 views

How to check/know the highest run queries

I would like to gather statistics on the highest run queries in my database. For that I need to know how I can track queries so I can create views or materialized views to cache the results of the ...
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1answer
10 views

Couchbase Ghost entry - Have it in view, not in data itself

I have a 4 server setup. In them I have a view like this: function (doc, meta) { if(meta.type == "json") { if(doc.type && doc.type == "saveDocument") { emit(meta.id, ...
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0answers
26 views

Filesort when using view

I am sorry for asking, but I can't figure what i am doing wrong and filesort appears in my explain. The id column that I use for sorting in the following examples is a primary key... If I create ...
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0answers
13 views

What does mysqltest's view-protocol option do?

The documentation on mysqltest lists this at the bottom of the list of options: --view-protocol Every SELECT statement is wrapped inside a view. What does this option do? Using mysqltest ...
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1answer
52 views

ER Diagram - View Intergration/Centralised approach

Could anyone enlighten me on the difference between a view integration and centralised approach when designing a database, and how the ER diagram can be used to illustrate upon this; can't seem to ...
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0answers
16 views

creating best results from two tables

I have two tables, one is the results of an assessment from users(per row) and column starting with 819....X1 represents the qid. The other table holds the score for the answers (A1,A2,A3), both are ...
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0answers
27 views

Refresh materialized view in Teiid

I have created a teiid vdb with sql server data source. The view model contains a materialized view, how to refresh the materialized view manually or automatically? Is there any sql command to trigger ...
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0answers
15 views

Creating a Views on an non-relational table, can't rotate

I have a table that is set up similar to this. id | key | value1 | value2 | value 3 01 | fname | "john" | null | null 01 | lname | "doe" | null | null 01 | bday | null | YYYY-MM | ...
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0answers
45 views

MySQL View: Transform rows in columns and update

i would like to show data from this mysql-table: ID | Channel_ID | Value | Time | 01 | 15 | 10,5 | 364 | 02 | 3 | 4,2 | 365 | 03 | 3 | 5,3 | 394 | in an ...
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2answers
248 views

How to find all schemas where a table has records?

In my Oracle database, I have a number of schemas (users/owners) with similar table structures (about 100 in total). However, some tables are empty in a lot of schemas. Is there a way to find out for ...
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0answers
37 views

Slow queries while using views in MySQL

We have MyISAM tables on MySQL 5.5 and there is this select * from theView where serial_number = 'QWE12345' or select * from theView where user_id = 1234 kind of queries when searching. When I ...
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0answers
131 views

Query on a SQL Server view with openquery to Hive returning wrong answer

I have a view in a SQL Server instance which is running an OPENQUERY to Hive through MS OLE DB Provider. The view is getting all the records from the Hive table without any WHERE clause. Now, I ...
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0answers
51 views

Recursive view for dynamic tree in MySql

Lets assume that there is a factory that produces products. the factory have catalog of a products, therefore tbl_catalog will be. ...
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0answers
273 views

Performance of VIEWs with UNIONs in different databases

For various corporate and historical and replicating reasons, I have multiple databases that contain similar-structured tables, holding the main production data used as a source for other home-made ...
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0answers
93 views

SQL Server: efficient query with (double) linked servers

I am DBA of server A (SQL Server 2008R2), linked to server B (SQL Server 2012SP1), linked to server C (not sure which version). I have no control on server C, and I cannot contact its DBA. On server ...
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0answers
632 views

MySQL: #126 - Incorrect key file for table '/tmp/#sql_9dc_1.MYI'; try to repair it

I've been reading possible solutions to this problem but until this time, those solutions don't work with my case. Activity: In phpMyAdmin, the following error pops up while opening a View. Error: ...
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0answers
314 views

Create separate temporary table/view and variables for every query

How can I create something similar to VIEW or TEMPORARY TABLE for every query separately? I have 1 process, it creates and holds one connection (doesn't destroy connection after request, so doesn't ...
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0answers
42 views

MySQL Replication problem with VIEWS and “Sub-Databases”

I've got three servers that should do a master-master replication. On server 1 i got "01_maindb" which holds the master tables. I replicate this table to the two other servers without problems. ...
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1answer
94 views

Combining data of multiple rows in view

I have a table that holds timetracking data of users and looks somewhat like this: projectid activityid worklocationid year week day hours 1 22 21 2014 37 ...