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

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251 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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681 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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132 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 B,...
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771 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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573 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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371 views

What is the cost to create Materialized View log

Recently I ran DBMS_ADVISOR.TUNE_MVIEW and it gives me several lines to CREATE MATERIALIZED VIEW LOG ON "MYSCHEMA"."COMPANY" WITH ROWID CREATE MATERIALIZED VIEW LOG ON "MYSCHEMA"."BOARD" WITH ...
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18 views

Get tp.address_from and tp.address_to from travel_point table

I'm building a view for get tp.address_from and tp.address_to but I can't get this works. This is the query I'm working on: SELECT `tp`.`address_from` AS `address_from`, `tp`.`address_to` AS `...
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2answers
47 views

primary_key problem in MySql view

I have 3 tables. and I want to create a view. There is no problem about generating SQL qeury and creating a view. but when I want to use this view in my web app it says me (LIKE THIS): "your view's ...
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1answer
603 views

Best Practice For Data Views with Linked Server in SQL Server

In SQL Server, I have to design a View that I can map on a DBML file in order to dynamically retrieve information from the database with multiple conditions to filter. The problem is that I have to ...
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157 views

CREATE VIEW joining two tables, only displaying rows from the first table with the most recent date in the second table

I have multiple tables. My main table has a composite key consisting of a phone number and an order number. I want to create a VIEW where only the subscriptions with the most recent order date are ...
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483 views

MySQL - Problems caused by SQL Security definer or invoker

I have a view used to be defined as: > **CREATE > ALGORITHM = UNDEFINED > DEFINER = `user1`@`localhost` > SQL SECURITY DEFINER VIEW `schema1`.`view1` AS > select &...
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54 views

From keyword missing in view

I am this view which I am trying to compile. Given below is the view. CREATE OR REPLACE FORCE VIEW "My_View" ("my_ORDER", "REQUESTOR", "DEPARTMENT", "HOD", "SHIP_TO", "SOLD_TO", "PRODUCT", "...
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159 views

Return a string from a pivot query

I have a query that uses around 6 or 7 tables and uses pivot to return a formatted string from this entire structure. Actually, today this query is dynamically generated via C#/Entity Framework and it ...
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423 views

Mysql View Performance on Aggregate Functions

I've a table that contains weekly statistical infos. ex. Society - Week - Year - Data AAA Inc - 1 - 2014 - 10250 AAA Inc - 2 - 2014 - 5235 BBB Inc - 2 - 2014 - 3210 ... Over this table i need to ...
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2answers
683 views

Postgres 9.2 - Create View Different Column Names

I want to create a view of a table with a column renamed. I do not want to effect the source table, just the view. I need to rename the column addr:housename to addr_housename. We have a 3rd party ...
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2answers
108 views

Anyway to optimize complex view?

In the system, Files can belong to either products, clearances, business_lines or titles. Clearances are records that represent a combination of a title and a product. Products are collections of ...
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1answer
57 views

Migrating database with views trough phpMyAdmin causes error in second host

I'm trying to migrate a database which contains some views and I'm doing trough phpMyAdmin export feature. MySQL version on servers are: Server to migrate: Server version: 5.5.34-0ubuntu0.12.04.1 ...
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1answer
549 views

Restrict access to rows by usename

In my database i store data of different users (e.g. addresses or invoices) in the corresponding tables. I want to make sure that a logged in user only has access to it's own data in the tables (so ...
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136 views

Why does mysql show Primary key constraint on a View?

As far as I know views cannot have a primary key. However the result of SELECT FROM KEY_COLUMN_USAGE says differ. PRIMARY | S_MOBILE_ITEM_VIEW | ID | ...
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74 views

Procedure after commit

I have an application which periodically will insert large amounts of data, from that data I build a few materialized views (well emulate by creating a table from a view and replacing it with the ...
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1answer
90 views

Where can I read about views for MySQL?

I really don't know nothing about SQL.. I know how to insert and select data from database using PHP but besides that, nothing. I found this view And I am sure that 5 minutes for you to answer this ...
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2answers
68 views

View for a MANY_MANY_MANY relationship

Let's say I have 3 main tables: category, tag, url category and tag have a MANY_MANY relationship (category_tag). tag and url have a MANY_MANY relationship (url_tag). I would like for a given ...
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1answer
42 views

Cast as INT(11) instead of DECIMAL 11,0 in a view

I have a view with a column defined as: IFNULL(priority.id, 2) priority_id, ... where priority.id has type INT(11), however the resulting view column has type: DECIMAL(11,0) How do I get the ...
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2answers
75 views

Efficiencies and pitfalls of a dynamically updated “Uber” View to streamline future code

We have a number of tables (about 40) with approximately 2500 columns between them that all have matching primary keys, but different unique columns. For various procedures and views, we'll draw on ...
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1answer
3k views

mysql view with user variables

I have a query that calculate distance from point a to point b using gps coordinates, and would like to make it view. Is it posible to pass variables that will replace xxx and yyy in my query with ...
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1answer
2k views

How to create view in SQLite using INSERT INTO? [closed]

I'm trying to create view that will summarize data in two tables. Each table have several columns, but they both have NAME and AREA columns. And I want these two columns to be united correspondingly ...
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1answer
267 views

Selecting just one table from Oracle view [closed]

I am creating a view to ease my manual selecting because I only want to fetch data from DB where it is meeting certain criteria which are present in several tables, so it is containing a lot of joins. ...
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1answer
262 views

View vs TableValued Function vs SubQuery

I have a scenario where i need to join with 3 tables to get the value for one field for second field join with 4 tables for third field join with 3 tables all above joins are inner and if data ...
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1answer
266 views

Odd syntax error when creating view with SCHEMABINDING [closed]

I've been working with SQL Views for a while now, and I recently read that something that I want to do requires that one of my views be created with schemabinding. That sounds fine, but I get a ...
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1answer
61 views

Cannot UPDATE a view that uses a join

create view drums as select emp.sno,emp.name,emps.sal,emps.deptno from emplys emp inner join employees emps on emp.sno=emps.sno where emp.deptno<5; when I use this update drum set ...
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votes
2answers
108 views

MYSQL: Join with many to many

I'm trying to create a view and trying to see what can be done, I have a main table a table I want to join to and also a junction table. Event table (it's very big so it's just dummy data): +----+---...
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1answer
78 views

Create a view for different attributes from different tables

I have three tables: product(pid,name,category,maker-cid) purchase(buyer-ssn,seller-ssn,quantity,pid) person(ssn,name,phone number,city) How can I create a view to expose only the Buyer name, ...
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1answer
66 views

How to freeze a view in standard SQL? [closed]

I have the following: create view ONE as select ID workers_A; create view TWO as select ID workers_B; create view FINAL as (select * from ONE) UNION (select * from TWO); That works correctly, but ...
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1answer
40 views

when adding a table to my dbo.view I don't get the entire view

here is the code for my view that calls all rows from the tables: SELECT dbo.Purchase_Order.Purchase_Order_ID, dbo.Purchase_Order.Purchase_Order_Number, dbo.Purchase_Order.Purchase_Order_Date, dbo....
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votes
1answer
6k views

Can I create a view against a table on another instance? [closed]

I need to query a table from another SQL Server on a different server but same domain, but I am not sure how I will be able to do it. I tried the solution in this answer but it doesn't work for me as ...