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

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145 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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27 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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65 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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74 views

Why am I getting different results from a query vs. a view

The base problem I'm facing is that I need the latest record for each item. A little setup... MySQL 5.6.14. I need to create two views (because MySQL won't let me have a subquery in a view). My ...
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225 views

Can I alter a view being referenced with schemabinding if the change fulfills the binding requirement?

In SQL Server 2008, I have views WITH SCHEMABINDING and I need to alter one. I am changing a column while not changing its alias so consumers will be unaffected. If I were to drop all my other views ...
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2k views

In creating view use SQL Security definer or invoker?

CREATE VIEW syntax is CREATE [OR REPLACE] [ALGORITHM = {UNDEFINED | MERGE | TEMPTABLE}] [DEFINER = { user | CURRENT_USER }] [SQL SECURITY { DEFINER | INVOKER }] VIEW view_name ...
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117 views

Does the SQL Server Backup Database Command also backup views from a Database?

I have a backup job (SQL Server Agent job) which will iterate through all of our SQL Server databases in SSMS, invoke the BACKUP DATABASE command to create a .bak file on a different server. This ...
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125 views

Where do caching servers conceptually fit in my architecture?

Given the simple well-known architecture below: Where (conceptually) does the caching server(s) sit?
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784 views

Triggers vs Views in MySQL

We are in the process of denormalizing a large amount of data for performance reasons. Basically a Query that would normally JOIN over 10 tables is replaced with a Query that has no JOINs, yet all the ...
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179 views

Add info to mysql view around an IP address - 10.10.1.100 to https://10.10.1.100

I have built a database in MySQL to replace the use of MANY excel spreadsheets that document our servers, network, IP addresses, etc. In that database I have created a view called DRAC (dell remote ...
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1answer
66 views

Index optimization on a view using a full outer join

Table structure: Foo FooChild Bar --- -------- --- ID ID ID Date FooID Date ...
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54 views

Full outer joins, coalescing, indexes and views

I have two tables, let's call them TableA and TableB. TableA TableB ------ ------ ID ID Date Date Foo Bar Both tables ...
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596 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 ...
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3answers
548 views

best practice for 'staging' relation in stored procedure: use temp table, or view?

When I write stored procedures that take relation A and output relation Z, I like to create 'staging' relations along the way, so I can inspect the state of the data after each step in the programming ...
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2answers
441 views

MySQL views and table locking (5.1 MyISAM)

I have a large (160 million rows, 50GB) table in MySQL 5.1 using MyISAM. If I were to construct a view defined by a fairly complicated query, would a SELECT on the view lock the underlying table?
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91 views

PostgreSQL - Create view with autoincremental column

I have a PostgreSQL table, and I need to create a view with a new column. This column needs to be an auto-incremental column starting at 1 and going to N. Is this possible to do without effecting the ...
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1answer
63 views

Is deriving a value using multiple joins a good idea? [closed]

I am working on a university project. I need to create a database from conceptual to implementation. That allows customers to create an order with multiple products the specification says that we ...
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1answer
2k views

Optimize command issuing “'View is not base table” and “Corrupt” error messages

I have no experience with MySQL. My boss ran an optimize against a MySQL database. Against a bunch of views we got the message "tablexyz" is not BASE TABLE and the next has message is ...
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848 views

while restoring mysql database, views changed into tables

I have a full database dump and i restored it. But in my new restored server all the views are appeared as MyISAM tables. In early times dumps were restored perfectly. can anyone help me to trigger ...
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162 views

How should row-specific metadata be created handled for an outer join view?

I have two tables, a large (millions) table of Tickets for orders, and a small (hundreds of thousands) table for Invoices metadata on a subset of those tickets. The metadata is information about when ...
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2answers
832 views

SQL Server 2000: Can't DROP VIEW?

I have SQL Server 2000. I want to clean it by dropping obsolete and unused objects. One of the views causes me an error. I try to give more information but I still have no clue what the cause is. ...
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2answers
82 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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1answer
1k views

View dropped, now shows as table “in use”, can't drop

I have a view on a MySQL/MyISAM setup, then the underlying table had a column dropped, and made that view invalid. I tried dropping the view so I could recreate it, then MySQL said it was a table ...
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93 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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2answers
2k views

SQL Server 2008R2 - How to prevent a role from creating or altering views within a database?

I have a situation on SQL Server 2008 R2 where I am trying to prevent users of an AD group from being able to create new views, or alter any existing views, within a particular database. This AD group ...
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2answers
6k views

Why an object became invalid in oracle databse.

There are some invalid views and functions in my database. I am not sure what changes caused these objects to became invalid since many people are working on the same database. How can I see which ...
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1answer
14k views

Oracle SQL create view privileges

This is more of a theoritical question but I need help ASAP. Here it is: With the appropriate use of SQL queries, grant as system administrators the required access privileges to a database user ...
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1answer
46 views

building a view w/ fields that only contain a certain word

Trying to build a simple SQL query... I have a table filled with "Yes" and "No" I want a view that only shows me records that contain "No" SELECT PhysicalBuild.Name AS Name, PhysicalBuild.Labels ...
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2answers
31 views

SQL view, how to append results from tableB with the results from tableA

I am using SQL server 2012. I would like to generate a sql view where I got all records from tableA. And below these results I would like to have the results from tableB. There are no relations ...
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1answer
129 views

Huge cross product view query speed

I have a huge view what consists of about 15+ million rows and about 150+ columns. That view is made of a lot of LEFT OUTER JOIN between a master table and various related tables. That master table ...
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1answer
310 views

Postgres - Optimizing an view dependent on an aggregate function?

I have a table of about 15 million records. Whenever information about a specific charge_id is changed, a new row is added with the current timestamp and the changes. This results in multiple rows ...
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2answers
117 views

Configure Oracle user in Enterprise Manager to CREATE VIEW on any of his tables

Is it possible to configure an Oracle user in Enterprise Manager, so that he can later create views on any future, yet unknown table in his schema? I am currently running into "ORA-01031 insufficient ...
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234 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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444 views

Question about Oracle's interpretation of “host cpu utilization” in v$sysmetric view

I am studying the v$sysmetric view from Oracle and trying to understand what is Oracle's interpretation of "Host CPU Utilization" It says in the metric_unit as % busy/(idle + busy), but what is busy? ...
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200 views

What is the locking behavior for Updatable/Insertable Views?

Consider I have a View that is merely a simple join between 2 tables, selecting all columns. The View is Updatable and Insertable. What would be the locking behavior when executing an UPDATE or ...
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209 views

What is a good way to query data stored in multiple identical tables split by date/time

I have a 3rd party piece of software which records data samples from industrial equipment. This data logging software stores data in sample data tables with approximately one day's worth of samples ...
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1answer
2k views

PostgreSQL 9.1 - Query on VIEWS taking a lot of time

Using PostgreSQL 9.1, we are having problems while executing queries on a VIEW of PostgreSQL. Following is the situation: We have a partitioned Table "buz_scdr" over which we have built a VIEW ...
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5k views

Problem with View When Restoring a MySQL Backup

I have a database (InnoDB) with some tables, views and routines... Periodically I do a backup using the command line: mysqldump -u user -ppassword --routines db_name > backup.sql But I have a ...
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380 views

View metadata refresh in MySQL

Like other RDBMS, view meta data is stored at view creation time. From CREATE VIEW in the MySQL docs The view definition is “frozen” at creation time, so changes to the underlying tables ...
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2answers
1k views

Allow db_owner to add/view existing logins to database

On our development server (SQL 2008 R2) we want local dbo's to be able to add existing logins on the server to the database. The problem is they can't view them, they can only see themselves in the ...
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1answer
56 views

Slow max, min query in Postgresql View

I have a view and it's a left join between two tables (table_a has hundreds of millions of rows, table_b has ~2 millions). The query SELECT MIN("id") AS "min_id",MAX("id") AS "max_id" FROM "the_view" ...
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1answer
56 views

Insufficient privilege

We are using oracle 11g I am replicating production db for dev environment. I Have a user named CST2 and CST0 where CST0 contains all tables and view and public synonyms for the same. I have provided ...
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2answers
28 views

Schema/Structure to handle secondary computed data

I'm trying to design a LAMP-based website for my pinball league, which plays competitive pinball every week in match play. One of the features of our league is that we convert raw scores to ...
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1answer
159 views

PostgreSQL : drop column from view

I have a VIEW where I'm attempting to create an evolution script for, so I can add a column to it. That part works fine; column added just fine. However, the reverse does not work; remove that last ...
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80 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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74 views

Tools and techniques for untangling monster views (nested views)

First a bit of context (venting). I'm working with a new vendor product which is really nothing more than a SQL Server database with a .NET interface. First few weeks with this client and users are ...
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216 views

Oracle views not using indexes [closed]

I am experiencing the unexplainable - at least to me. I have some tables in my production database which have some indexes on. We then have a number of views which merge the data across tables to ...
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49 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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3k views

Hide column if any value is null or zero via proc sql or view [closed]

Given either of the two following datasets Kağıt Cinsi Sarı Yeşil Mavi Kalın 4 0 5 İnce null 0 3 or Kağıt Cinsi ...
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1answer
590 views

Retrieving a fixed range of rows from Postgresql

I have a query: select qid,ansid,ans from table1 where askerid='something' This query can retrieve many rows. But I want to display only 50 rows at a time and then if the user clicks on more, the ...