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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3
votes
2answers
270 views

which one is more efficient query?

I have a table called STUDENT +-----------+-----------+-----------+---------------+ | StudentID | FirstName | LastName | EnrollmenDate | +-----------+-----------+-----------+---------------+ | ...
1
vote
0answers
180 views

Get all comment.message, status.message, users.* and profiles.* where users.user_id exists in friend.friend_id or friend.user_id

I need some help building this query because it's a bit complicated at least for me. I need to get all comment.message, status.message, users.* and profiles.* where users.user_id exists in ...
2
votes
0answers
138 views

SQL fulltext indexing ranking combined with ranking used by window's file indexing service

We have a list of records contained within a MS SQL database table, we have enabled "Full Text Indexing" on the table. Also, we have set up a window's file indexing service and added a catalog ...
2
votes
2answers
474 views

SQL Replication Commands

I'm trying to figure out how i can get the number of commands over the last day for a sql server replication. Transactional / Snapshot / Merge. I really want to be able to calculate the average ...
5
votes
4answers
1k views

Speeding up COUNT(*) - WHERE clause slowing query

The following query takes 497 ms to run, if I remove the AND portion onwards it only takes 320 ms. Is there any way to speed this up? The only indexes I have on 'messages' table is a PK on ...
6
votes
4answers
3k views

Checking if 2 tables ( on different servers ) have the same exact data

So it seems that the company who is hosting our SQL Servers has been having some trouble with the replication from the production server to the backup server... I believe some of the tables have been ...
0
votes
3answers
2k 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 ...
1
vote
1answer
1k views

How to truncate all tables with a specific name in all databases

I want to delete all tables named error_log in all of my databases that have such a table. truncate table error_log I am using SQL Server 2000.
0
votes
1answer
198 views

Is possible to optimize this query or it's already optimized?

I've three tables: default_users, default_profiles, default_friend. This are the SQL for each one: -- -- Table structure for table `default_users` -- CREATE TABLE IF NOT EXISTS `default_users` ( ...
2
votes
1answer
873 views

query generate the information one column in two columns in one query

I have a question related with a query in sql. I have the next table: id name 1 name1 2 country1 3 name2 4 country2 I need to call the results so: ...
3
votes
1answer
332 views

How can I conditionally summarize multiple rows in Microsoft Access?

I have a table of data, in Microsoft Access 2003, listing multiple rows for each person. I want to conditionally summarize a subset of these rows for each person, for instance, if entry for columnA = ...
0
votes
1answer
464 views

Creating a bar chart from datatable

I'm writing a console application that fetches data from database (SQL) and writes to an excel sheet. Now I want to add a chart in the workbook according to the datatable values. How can I create ...
0
votes
1answer
388 views

Escaping a single quote in SQL Server 2005

I am using SQL server 2005 and using the northwind database. I need the supplier id of Grandma Kelly's Homestead and I used this query: select supplierid from suppliers where companyname ='Grandma ...
3
votes
4answers
25k views

SQL Server CREATE FILE encountered operating system error 5 (Access is denied.)

I'm trying to execute the following script in SQL Server Management Studio but I'm getting the error: Msg 5123, Level 16, State 1, Line 2 CREATE FILE encountered operating system error 5 ...
1
vote
1answer
106 views

group by and having query need help?

I am using the pub database in SQL Server 2005. Which stores have at least 5 orders? Should diplay the store name and store id. I have come up with a query something like this: select ...
0
votes
1answer
184 views

Simple Search on 13 Terabyte Oracle Database to return relevant rows (.net app? Java?)

I am sure there are some easy ways to do this... I have a simple flat Oracle table which is 13 terabytes or so in size due to a large number of rows accumulating over the years. I need to do a search ...
3
votes
1answer
6k views

Get a fixed value on a select

I need to do a SELECT query where I get the value of the field "money". The field doesn't actually exist in the database. I just need the query to return this field with a fixed value; in this case ...
8
votes
3answers
46k views

SELECT DISTINCT on one column, while returning the other columns?

I have a query which uses three lookup tables to get all the information I need. I need to have DISTINCT values for one column, however I also need the rest of the data associated with it. My SQL ...
4
votes
1answer
126 views

unique constraint on a set

With reference to this SO question, what would be a correct way to implement Unique tag Combination Constraint in SQL Server 2005? To illustrate the problem, I make an example: A tag_bundle consists ...
0
votes
1answer
44 views

Why this query returns rows that I don't want to be there

I'm trying to running this query: SELECT * FROM (`default_users`) LEFT JOIN `default_profiles` ON `default_profiles`.`user_id` = `default_users`.`id` WHERE `default_users`.`group_id` ...
2
votes
2answers
4k views

Remove the last character from Variable String

I have a few variable data in the column "email". For example: roy2087@gmail.com123 sg123@yahoo.compori How do I get rid of the characters after .com? I used Replace(email,'.com%',gmail.com), ...
3
votes
5answers
536 views

Single query to return counts over different IDs in a single record

select count(title_id)as algodata from titles where pub_id =1389 select count(title_id)as binnet from titles where pub_id =0877 select count(title_id)as newmoon from titles where pub_id =0736 ...
3
votes
2answers
3k views

SQL Server 2008 R2 Express size

I have what I believe is SQL Server 2008 R2 Express installed on a production server. When I connect to it with SQL Server Management Studio it shows up as SQL Server 10.50.1600. If it is in fact SQL ...
7
votes
2answers
1k views

Filtering data ordered by rowversion

I have a SQL table of data with the following structure : CREATE TABLE Data( Id uniqueidentifier NOT NULL, Date datetime NOT NULL, Value decimal(20, 10) NULL, RV timestamp NOT NULL, ...
5
votes
4answers
1k views

Composing the “ultimate database maintenance script”

I'm trying to compose T-SQL script that will: A) Shrink database size to the minimum possible size; B) Make integrity checks, and completely "reorganize" and optimize the database so that it is in a ...
6
votes
1answer
1k views

How to create a SQL Server 2008 backup without logs with mirroring

How do I create a backup of a SQL Server 2008 in a mirrored setup without any logs? We need to do this so that when we restore our local development databases, we would have the most up to date ...
2
votes
5answers
1k views

SQl Server Password Change after installation

I have installed SQL Server 2005, but at the time of installation I forgot to change my password. Now I can access my database only in window authentication mode, and I want to access the database in ...
0
votes
3answers
2k views

MySQL Triggers Different Database Different Server

I have two databases, each on a separate server. Each database has a number of similar but not identical tables. I need to combine the records from these similar tables into a new database, which is ...
4
votes
1answer
131 views

According to the SQL92 spec, can I store the value 1 in a field where the precision = scale?

Is it SQL92 compliant to store the number 1 in a field that is defined as NUMERIC 3,3? What about DECIMAL 3,3? Does this mean that the precision is a floating decimal place or static that must ...
3
votes
2answers
3k views

Suppress SQLCMD messages

Would it be possible to suppress all sqlcmd messages output to the cmd window? I am running a large script and it seems to be slowed down a lot with all the Processed XXXX total records messages. ...
7
votes
1answer
87 views

sysschedules datatype choices

I am Curious. Why does TSQL save the values in msdb.dbo.sysschedules for date and times as ints instead of using datetime. I assume the reason dates back to something in SQL Server 2000. Was it a ...
3
votes
2answers
179 views

How SQL server database reorganize memory

I am using [sys].[master_files] table to determine the size of the database, however i didn't get a sensible value yet. If i am inserting 100 rows into a table ideally db size should increase while i ...
1
vote
1answer
64 views

SQL - Need some advices for building a large db

currently, as I understand, to build a large db, we need to pay attention to its size and performance. Below are what to reach: Size: HDD has > 4tb to store filegroup if using partition tables. ...
3
votes
1answer
575 views

Send data from SQL to a serial port or IP address

I've been asked to integrate SQL transaction data with a video monitoring system in real-time. The video system's application is only capable of receiving data by listening on a serial port or a ...
2
votes
2answers
7k views

Local database vs Amazon RDS

I am doing large INSERT into a local MySQL database I am at 2,000,000 rows and am really starting to notice the slowdown now. I always heard that MySQL wasn't very scalable I expect this database to ...
11
votes
3answers
4k views

System disk run out of space when running heavy SQL queries on SQL Server 2012

I'm quite new to SQL Server 2012, I would be grateful if someone can help. I have restored a copy of a huge database to SQL Server 2012 and I tried to run some simple queries against it. I'm trying ...
6
votes
2answers
3k views

What are the differences between SQL I/O Sim and SQL IO tools?

I want to test my different SQL Server alternatives with a benchmark tool. I found two tools by Microsoft: SQLIO Disk Subsystem Benchmark Tool SQL IO Sim What are the differences between them? is ...
5
votes
2answers
176 views

New Cluster Testing - Best Practice

We've finished setup of a 4-node SQL Server 2005 cluster. We are using Windows 2008 R2 as the underlying OS. We are looking for suggestions on a set of tests we could perform to test failover of the ...
1
vote
1answer
368 views

SQL Server 2012 Performance Test

I've been given a task to test where an SQL server 2012 can achieve better performances - we have two options: Use the SQL Server as an On-Premise machine (Standalone server that we have) Use the ...
3
votes
1answer
67 views

What does this code do?

I found one of my queries was over written with following code: SELECT cp.objtype AS ObjectType, OBJECT_NAME(st.objectid,st.dbid) AS ObjectName, cp.usecounts AS ExecutionCount, ...
3
votes
2answers
792 views

Are these MySQL queries efficient?

It took me quite a while to learn how to deal with timestamps in MySQL and I think I accomplished my goals, but I want to double-check two things: 1) Are these doing what I expect 2) Are there ...
3
votes
1answer
3k views

Atypical problem with ORA-01445

I have problem with following query Q1: SELECT ADDRESS.STREET FROM MYSALES.MYADDRESS ADDRESS INNER JOIN MYSALES.MYCOUNTRY MCOUNTRY ON MCOUNTRY.MYCOUNTRY_ID = ADDRESS.MYCOUNTRY_ID INNER JOIN ...
1
vote
2answers
847 views

COUNT with set DIFFERENCE and UNION

Fairly simple question that I can't seem to find an answer to - I'm working with unions and differences, and I would like to perform a COUNT on the results. Currently I'm having to pipe out to a file ...
1
vote
1answer
82 views

Verify if I can use a given directory

Admin creates an Oracle directory: CREATE OR REPLACE DIRECTORY EXAMPLE AS '\\server\share\test'; GRANT READ, WRITE ON DIRECTORY EXAMPLE TO JOHN; Admin can test whether the directory exists: SELECT ...
3
votes
0answers
329 views

How unsafe is it to change the data source of repl_distributor on a publisher

I have a long story that I will condense to a few bullet points that leads up to my question Reporting Server (SQL 2008) is distributor/subscriber cluster for a SQL 2000 Transactional Publication ...
3
votes
1answer
2k views

Why does altering a table and adding a foreign key create an extra constaint?

Edit: It was a default constraint as a result of setting a default value when adding the column. The name gave it away when starting with 'DF__'. Anyway, solved it by adding the column and manually ...
1
vote
2answers
6k views

sql server management studio backup error [closed]

hello, i want a back up for my database in sql server management studio. i am using ms sql. but when i try to back up , i take the following error: =================================== Backup failed ...
3
votes
2answers
3k views

SQL Server - In Recovery

Was uploading a few hundred thousand rows in my SQL 2008 R1 database and have come in this morning to an "In Recovery" message next to the database name in SQL Management Studio. I've tried a DBCC ...
2
votes
1answer
1k views

Extract some columns data from one table and insert into multiple tables

I have a table with 16,000 records and need to get out some columns and then insert values in multiples tables. For example, suppose I have the following tables tbl_1: id, name, lastname tbl_2: id, ...
2
votes
3answers
576 views

Refactoring Series of UNIONs in single table (SQL/SYBASE)

I am trying to query a database and reformat the rows/columns that I am interested in. Each row in the current table (EQ) represents a field in a form. In reality, there are several hundred FieldNum ...