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

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1k views

View with parameters in Sybase SQL Anywhere

A view with Sybase engine cannot take parameters. Is there a way to do this?
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132 views

Migrating SQL Server 2000 to SQL Server 2008

I'm migrating SQL Server 2000 to SQL Server 2008. I have many views. How do I check each views that if they have an order by clause? Thanks.
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1answer
1k views

Speeding Up Querying Views

We've got a complicated stored procedure. The biggest pain point of the procedure is a join on a complicated view--it has unions and subqueries. I can't add indexes to it. So, I want to cheat. By ...
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2answers
6k views

Primary Key on a View

While answering this question How to add a Primary Key on a Oracle view? A lot of questions popped in my mind. 1. Is it advisable to have primary key in a view. 2. Why anybody be intrested in ...
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1answer
307 views

Tablespace consumed by views

I was in an SQL class where the instructor said "DBAs don't like it when users create views, because they will clobber tablespace." Obviously, I understand that any schema object will consume some ...
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1answer
752 views

access all_mview or user_mviews from app code

I need to access the user_mviews or all_mviews table to get meta information about materialized view in my app. Which grants are necessary to read the user_mviews table?
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122 views

With Clause vs View of the same name

In my database, there is a view named VAL_DATES_V which is used in many other views in the same schema. For example, the SQL code in the view SECTOR_V uses VAL_DATES_V. CREATE OR REPLACE VIEW ...
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112 views

Is it a best practice to contrast table and dependent view metadata to target which views to refresh?

We have non-indexed views created on vendor tables. When they change table structure or column definitions we run sp_refreshview as needed. What is the viability of a script to contrast the table ...
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160 views

(MySQL) How to change the results of a view according to the user that's viewing it?

I have a table, named servers, with a single column id. This table is accessed by various machines each with a different username for the database. I want to make it so each server does not see all ...
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471 views

Virtual Column - Using it in view (Oracle)

I have made a virtual column in Oracle, using the following code. CREATE OR REPLACE function email_address (ID_ varchar2) return varchar2 deterministic as lname varchar2 (256); snumber varchar2 ...
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1answer
284 views

Why are views not copied over when using SQL Server Log Shipping?

I have 2 Sql Servers (2008) with Log Shipping setup between them. The receiving server is configured to keep the database in Read-Only mode. When creating a view on the primary server, this view is ...
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1answer
25 views

Turn off auto qualification of table names when creating a view

Problem Definition I am trying to modified a shared development database, for a dev team to use for application development/testing. Most of the collective work (table names, views, etc) are stored ...
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1answer
95 views

Encryption/Decryption with StoredProcedure/View

I'm working on a project that uses EntityFramework for programmers to access the data. We've recently found need to add fields that were determined that need to be encrypted. This will be the first ...
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1answer
103 views

Tracking down unused Views and Stored Procedures

I am working on a SQL Server 2005 database that has two Microsoft Access ADP frontends. This database needs a lot of love and attention which I am attempting to give it. There are lots of stored ...
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1answer
759 views

Indexed VIEW in SQL Server with PIVOT

A simplified version of my problem is as follows: I have three tables Records, Inputs, and Outputs. Records Id DTS   1  2015-01-01 00:00 ... Inputs Id RecordId ...
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1answer
24 views

Insertion Rule on a view

I m using postgres 9.3 and i m trying to insert data to the view objectifsBoutique and and PostgreSQL returns following error(« objectifsboutique » relation is not found). I have to mention that the ...
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262 views

Select multiple rows based on date interval from two fields

I am still learning SQL and I would like to do something that I dont know if it is possible. I have a table in which each record has a initial date and a final date. I would like to create I query ...
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44 views

General purpose view for last value in a group

I am trying to create a view to show the last value in the group. Looking for a more general purpose query. CREATE TABLE a ( id INTEGER, seq INTEGER, val VARCHAR2(16), PRIMARY ...
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2answers
138 views

Fixed database paths in stored procedures/views - is there a smoother way of doing this?

Our developers love to create lots of different stored procedures/views, which extracts data from lots of different databases on different servers. Every time we migrate to a new database server, ...
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2answers
428 views

Does MySQL have information_schema.VIEW_COLUMN_USAGE or an equivalent?

SQL Server has a an information_schema view, 'VIEW_COLUMN_USAGE', which you can use to determine the actual/base tables that the columns in a view reside in. I'm looking for the equivalent in MySQL - ...
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2answers
5k views

How can I define the datatype of a view in MySQL?

I've written a simple aggregation view over a table, and the view returns different data types that the table. This causes some issues on the application side. Here's a simplified query for the sake ...
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2answers
963 views

Creating a view on a non-existing view

I have a whole bunch of views that I need to create. Many of these views depend on other views. If I create a view that depends on a view not yet created, I get an Invalid Object error. Rather than ...
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2answers
356 views

Search on part of a column in a SQL Server cross-database view

I'm currently writing an application that interfaces with a 3rd party vendor's SQL Server 2008 database that I only have read access to. We have a separate database that contains cross database views ...
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1answer
40 views

Is using MySQL views a good translation mechanism?

We want to use a foreign vendor MySQL database, but the whole schema is barely understandable by our development team. We could alter the schema to rename tables and columns once for all, but the ...
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1answer
846 views

How to return a record from function, executed by INSERT/UPDATE rule (trigger)?

I'm having some issue when I'm trying to join two tables in a single view (for migrating code we want to split one big record into two records). I'm using Postgres 9.4! Here is an SQL fiddle. The ...
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1answer
549 views

MySQL : Avoid Temporary/Filesort Caused by GROUP BY Clause in Views

I'm planning on creating a view using this SQL SELECT, but the explain for it shows it's using temporary and using filesort. I can't figure out what indices I need in order to fix this problem. ...
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188 views

Joining two Mysql VIEWs takes a very long time

I have a textbox (for which I used jQuery auto-completion) in my PHP form where user can insert an actor/actress name and then by clicking "Search" button, a new window is opened showing list of ...
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115 views

Make View Supersede Table in Same Database?

For testing purposes we have a sanitized copy of our production database in our test world. Because of the way it is sanitized, we now have empty fields where encrypted data previously existed. We ...
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1answer
2k views

Is there a way to explicitely have a not-null column in a view

If I create a view in Oracle, the column definition's not null characteristic is inherited from the base table: create table tq84_t ( col_1 number, col_2 varchar2(15) not null ); create view ...
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1answer
451 views

Can't query one view from another?

Okay, I'm moving a database from SQL Server (which I already miss) to MySql 5.6. I'm having a problem creating a list of valid dates. In SQL Server I just used CTEs to build up numbers, then months, ...
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2answers
819 views

MySQL Views Authorization

Questions: Is there a way, using SQL, to identify how many views are in the database per user? How can you authorize/deny users access to delete views created by another user?
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0answers
87 views

Materialized View - vs. New Calculated table for performance [closed]

I have a problem - I'm trying to de-normalize data tables in a data warehouse in preparation for use in the Business Intelligence/ Presentation layer. By denormalize I mean create a series of joins. ...
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14 views

postgresql: deleting from a view

In Postgresql 9.4, we're doing a view as a UNION of to tables A and B, and we'd like to have a single DELETED N ROWS message when we 'delete' the records in the underlying tables (via a a trigger on ...
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1answer
64 views

How can I allow a user to query a view but not the underlying table in MySQL?

I have searched for this question but cannot find an answer. Or, the answers I have found have been related to SQL Server. This is for MySQL 5.x. Anyway, say I have a table called Employees and in ...
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61 views

Optimization suggestions for db2 materialized view

I have a view for db2 9.7 which has consolidated o/p from few tables. The view is built and it is working fine I want optimization suggestions on the view SQL CREATE VIEW XYZZ AS SELECT ...
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1answer
97 views

Best way to design a database with one person with different roles

We've been browsing for a while looking for an answer to this, but any of them suited exactly my needs, I hope is a relevant question. We have a database for managing books. In this database, a same ...
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1answer
62 views

Adding a column to the view which shows the date in format YYYYMM

In the following view, I want to add a column (not alter the view) named say "ABC" which shows the date in format YYYYMM (no date, only year and month). How can I do that? I am using db2. create view ...
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158 views

Identity in a view treated as ordinary int - migrating from SQL Server 2000 to 2012

I'm migrating a very old platform from a SQL Server 2000 backend and MS Access 2003 as its frontend to SQL Server 2012 backend and MS Access 2010 as the frontend. This obviously means a bit of ...
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1answer
95 views

Is there a way to make an OOo form for PostgreSQL updateable view?

I have a PostgreSQL database, with data from some 8 tables (not counting enums implemented as a table referenced by foreign key) summarized in a view. I made an INSTEAD OF trigger, so the view is in ...
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64 views

Setting up triggers based on exposed columns in a view's source table

I have a table where I want to do a AFTER UPDATE trigger if one of the columns modified was in a specific view CREATE VIEW [dbo].[iv_EmployeesView] AS SELECT EMPLOYEE_GUID AS EmployeeGuid, ...
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54 views

CouchDB views and references

Not sure if/how it is intended to be done but i am trying to match up all the active document in my database with the author of it: function(doc) { if (doc.data.active && doc.data.active ...
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2answers
331 views

Complex view becomes slow when adding ORDER BY in outer query with small LIMIT [closed]

I have a pretty large query in a view (let's call it a_sql), that is really fast unless I use ORDER BY in an outer SELECT with a small LIMIT: SELECT customs.id AS custom_id, customs.custom_name AS ...
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3answers
523 views

Selecting from a view shows the wrong set of columns

I'm selecting from a view in SQL Server. If I right-click on it and choose "Select Top n Rows", it runs and shows me 30 columns. If I open the view in ALTER mode (right-click, Script View As, ...
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1answer
288 views

SQL Server table and view show different values

I have a view that selects data from a table that is showing different data. The table is dbo.user, the view is dbo.users (don't judge, I inherited this system). The view is simply select * from ...
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1answer
328 views

Performance hit with column alias

I have a database in SQL Server 2008, with the final data table having about 2 million rows. The development team is implementing a new application and they have suggested changing the column name to ...
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1answer
714 views

Using View filters for tenants in SQL-Server 2008

I'm currently creating a Multi-tenant data architecture in a SaaS BI-product. The product are using shared database and shared schema, but with tenant view filters and tenant data encryption ...
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1answer
49 views

SQL Server execution plan using a view, but no view is inside the stored procedure

I am troubleshooting this slow stored procedure and when checking the actual execution plan I noticed a warning of a possible missing index. Taking a closer look, it's against one of the views, not an ...
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1answer
130 views

can I give permission to insert into view, but not to referred table?

Here I have a view in public schema referring to the table in private schema: CREATE OR REPLACE VIEW public.products AS SELECT products.id, products.product_id, products.title, products.company_id ...
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284 views

Indexed views on double linked server

A server SERVER_A has some data. A server SERVER_B defines A as a linked server, and defines some views on the data. The queries are like this: CREATE view myview as select * from openquery ( ...
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1answer
2k views

I have an INSTEAD OF trigger, but PostgreSQL still complains while I insert into view

I have created a view and an INSTEAD OF trigger for inserting/ updating/ deleting from that view. Now I have tried to insert some data to the view, and PostgreSQL returns following error (translation ...