DO NOT USE this for questions targeting Microsoft SQL Server, use the tag sql-server instead. "SQL" is an acronym for "Structured Query Language", it is used in relational database management systems (RDBMS) to query, update, delete, and insert data as well as modify the structure of the database. ...

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534 views

Based on these DBCC SHOWCONTIG stats, should I index this table?

I have a SQL 2008 Standard server on full mirror (safety). I reorganize all indexes weekly. I am looking into rebuilding a few indexes to improve performance. I ran DBCC SHOWCONTIG on my largest, most ...
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1answer
2k views

Subtract values from SELECT in SQL

I have the following 2 queries.: shipManagementInvoiceNetValue: SELECT IFNULL (SUM (shipManagementInvoice.netto ), 0) AS shipManagementInvoiceNetValue FROM tckopf AS shipManagementInvoice WHERE ...
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1answer
477 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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2answers
721 views

SQL Server 2012. Update second table based on input from first table

I have two tables in two databases: Table01 in Database01 and Table02 in Database02. Both tables have a column called UserID. The UserID column is created when the user creates a new account on the ...
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2answers
1k views

Which schema is better for a shopping project? [closed]

I'm working on a business-to-customer project that has variety of product types. There are a few properties like name, description, brand_id that each product has but there are also many specialized ...
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1answer
113 views

Grouping rows by looking at two columns without considering the order

I have a table looks like this one below: +----+---------+---------+ | ID | VALUE 1 | VALUE 2 | +----+---------+---------+ | 01 | A | B | | 01 | B | A | | 02 | C | D ...
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2answers
719 views

How to index for a query with independent range conditions?

What is the best way to index a table that I query using independent range conditions? E.g. WHERE X < ? and Y > ?
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1answer
633 views

Export just rows modified in last month (date defined by user)

I'm asking if it's possible in MySQL to export just rows modified in a period of time for example in the past month, if it is possible, how?
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1answer
367 views

Need to find the number of employee who are not in all department

i have a table T1 which has two columns empname , department every emp must be in 37 department , but there are some employee who are in less than 37 department . I need to find the names of emp who ...
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2answers
1k views

Only allow one checked row in a Column in SQL Server [duplicate]

Background: I've only just begun programming in SQL... barely begun even. But I have been thrown into the deep-end left to find a way and learn to program SQL. Question: Is is possible to have a ...
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1answer
414 views

Why is CDC capture failing due to a missing dbo principal

I am having a problem running the CDC change capture job against some of my test databases. The error message I'm getting is the following: Executed as user: NT AUTHORITY\NETWORK SERVICE. Cannot ...
0
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1answer
461 views

optimize big sql query

My query has to return a statistics for example for march containing productname and price and its sidedishes (1:n relation) with the right price of each sidedish and the right tax for each sidedish ...
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2answers
421 views

Using MySQL InnoDB as an Archive

My site has a main MySQL InnoDB table that it does most of its work on. New rows get inserted at a rate of 1 million per week, and rows older than a week gets moved over to an archive table on a daily ...
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2answers
842 views

Database design of Ledger Account and Balance sheet generation

I am building an application which has deposit and loan accounts management, for which i have to develop ledger accounts and then generate balance sheet. Being new to database design, i am having a ...
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2answers
810 views

How to mix pairs of rows without JOIN (in a temporary table)?

I have a TEMPORARY table containing pairs of key/value as id col1 col2 type pair 1 key1 key2 key 1 2 value1 value2 value 1 3 key3 ...
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1answer
682 views

Optimising MySQL query with lots of self-joins

I have an entity_relationship table that describes relationships between entities. Each relationship will have 2+ entities involved. In some cases it can be said that one entity is a constituent of a ...
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3answers
2k views

ORA-00905: missing keyword when trying to create a synonym

I have a problem when I try to create a synonym like this: CREATE SYNONYM B2H.BILLING_USER_ACTIVITY@PACOMNET FOR B2H.BILLING_USER_ACTIVITY@PACOMNET.US.ORACLE.COM; Why does this happen and how can ...
0
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1answer
226 views

Trouble in Multi-Language DB

I'm working on a DB design for medicines in many countries with different languages. I created a table for the different languages I want and link it to another table of chemicals. But I find that ...
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3answers
122 views

How to convert query results into groups of common results

I have a query that returns results like this: MyValue MyGroup _______________|_______________ 56 | I _______________|_______________ 12 | I ...
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3answers
3k views

INNER JOIN making COUNT(*) slow

I have a very simple query: SELECT COUNT(*) FROM messages INNER JOIN users ON messages.user_id = users.user_id With the join it takes 1146 ms and without it takes 220 ms (220 ms still seems slow to ...
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1answer
2k views

how do I merge two views

I have basically two views named customerV and productV. the SQL statement in the customerV view is : SELECT CUSTOMER_REGISTRATION.SURNAME, CUSTOMER_REGISTRATION.OTHER_NAME, ...
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votes
1answer
573 views

MySQL table with multiple values in one field

I'm building a database for a real estate company. The real estate properties are managed by sales people using a CodeIgniter website. How should I proceed with the database design for this table? ...
0
votes
1answer
124 views

TSQL - Bringing Data Together from Different Sources …refactoring PK and FKs

I have various offices and one central head office. Each office has its own SQL Server instance so each office has its own data set with its own set of IDs. Each office has already imported data ...
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2answers
2k views

How can I truly DELETE data from a SQL Server table - still shows up in notepad in backup file?

SQL Server DELETE only marks as DELETED though leaves as data in the data pages. Data pages are 1024 KB in size and this problem can be eliminated by adding a FILLFACTOR that ensures only 1 record ...
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votes
1answer
776 views

Directory lookup failed during log shipping

I have configured log shipping for all our SharePoint 2010 databases. All worked well since Friday and today Monday I ran this query: SELECT * FROM [msdb].[dbo].[sysjobhistory] WHERE [message] like ...
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votes
2answers
2k views

Select query having count and variable

I have a table like the one below. I need to form a select query. I'm going to pass a RefID like SELECT SNo FROM Register WHERE RefID = 1 And beside the SNo in the Statement, I need to have ...
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votes
1answer
54 views

Process staging table by getting unique rows only [closed]

I have several staging tables where I bulk import data with duplicates and sometimes I upload historical data mixed with real-time data, just importing everything without caring if it is already in ...
-3
votes
1answer
8k views

What is the Difference between SQL Server 2008R2 and SQL Server 2014?

I want to take my project from SQL Server 2008 R2 to SQL Server 2014. But I want to learn what is T-SQL the difference between 2008 R2 and 2014 for Database Engine? I mean is there any end of life ...
-4
votes
2answers
18k views

Display month in columns and the sum of sales below the columns in sql [closed]

My table is like this: Sitecode Month Amount -------- ----- ------ XX Jan 1000 XX Jan 3000 XX Apr 3000 XX Apr 1000 What I want is, to ...