Transact-SQL (T-SQL) is a dialect of SQL used by Microsoft SQL Server and SAP's Sybase.

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Which problems arise, declaring the size of all varchar parameters as max in stored proc?

Looking at this question, it seems, that other sites too have the problem of increasing column sizes in the process of time. Increasing just the size of a column in a table is a rather simple task. ...
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1answer
254 views

View designer strange join syntax

I have a data warehouse with a lot of views built in with the SSMS view designer. Viewing the syntax, the FROM clauses are unintelligible to me because the ON statements do not follow straight after ...
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Mapping of multiple server logins to one database user

This seems to be a stupid question but despite some research I was unable to find any information regarding this only (possibly due to using the wrong terminology). Is it possible to log multiple ...
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1answer
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difference of left join and left outer join

In SQL Server join syntax we can use LEFT JOIN or LEFT OUTER JOIN and query result with each of above join not difference. this is a question for me that which are more useful.
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Using Left or substring with wildcard in SQL

I am looking to retrieve information from a field, but am having troubles getting exactly what I want. The information I want has no set order and I am also looking for two different things. Here is ...
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2answers
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T-SQL brain teaser: find non-overlapping sets

I would like to ask for help coming up with a query, which can identify groups on non-overlapping records. Here is a sample scenario (admittedly contrived). Let's say I have employees who are ...
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How to change SQL sever configuration manager settings using TSQL?

SQL server configuration manager is used to configure certain settings like connection protocols, service start up, etc... Is it possible to make these changes that is done in SQL server ...
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1answer
514 views

Passing a literal ? to sp_MSforeachdb

I am trying to search for the ? character in a string, but across all dbs on a server. Since the ? mark is a placeholder for the database name, how may I format the query so it knows I mean to search ...
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1answer
745 views

How to avoid using Merge query when upserting multiple data using xml parameter?

I am trying to update a table with an array of values. Each item in the array contains information that matches a row in a table in the SQL db. If the row already exists in the table, we update that ...
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1answer
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Splitting a csv column from select query into multiple columns

I have a stored procedure SELECT [ShipWorks].[dbo].[OrderItem].[Code] AS Code, CASE WHEN (LEN(ISNULL(MAX([ShipWorks].[dbo].[OrderItem].[Location]),'')) = 1) THEN ...
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1answer
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SMS Suggesting covering all columns in an index?

I'm still a bit newer to indexes and database works, so I may very well be missing something obvious. SMS suggested adding a covered index to one of my tables that Indexes on the column I believe ...
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1answer
568 views

Unexpected Table Scan with Parameterized LIKE

I'm experiencing an unexpected table scan on SQL Server 2005 against a heap table when parameterizing a LIKE statement... but when the same value as the variable is hard-coded, the expected Index Seek ...
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Total of orders open on a given date for each date in a date range

This question is similar to Running total with count?, but please allow me to explain some further twists on the issue. I'm using SQL Server 2008, so the cursor option described by Aaron Bertrand ...
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1answer
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Using FLOATs with RAISERROR

I am using RAISERROR() to provide some basic Unit Testing functionality (as here), but I am frustrated by the inability to use FLOATs in the error message. I know I can cast the float to a string, but ...
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2answers
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Grouping records based on intervals of time

I have a table with the following schema, and I need to define a query that can group data based on intervals of time (Ex. records per minute) and then provide the sum of the changes to the ...
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Will I need to create a pivot or can I alter this query

The following Query that I wrote is working to a point. The problem that I found is that in each pump, cable, etc can be listed in each of the part columns. Example: What I would like to get is ...
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901 views

How do I row count into groups?

I have records with a bit field that are in an order how do I group them in sets of 3. For example if my first three rows have bit fields 0,1,0 I want them in set 0, the next 3 are 1,0,0 I want them ...
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1answer
684 views

Why can the target of the OUTPUT INTO clause not be a view?

Here is my statement: DELETE FROM table1 OUTPUT deleted.col1, deleted.col2 INTO view1; It gives me this error: The target 'view1' of the OUTPUT INTO clause cannot be a view or common table ...
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1answer
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Compound Primary Key - Index both fields?

I have a many-to-many join table between users and roles. CREATE TABLE AppUserRole ( UserId INT NOT NULL, RoleId INT NOT NULL, CONSTRAINT PK_AppUserRole PRIMARY KEY (UserId, RoleId), ...
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1answer
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Why does SQL Server 2008 R2 insert an invalid datetime when using bulk insert?

I want to insert rows with an optional datetime value (per row) using T-SQL BULK INSERT on a SQL Server 2008 R2. A table could look like this: CREATE TABLE [dbo].[tbl_bulk_insert_datetime_issue] ( ...
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1answer
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How to detach corrupt database in SQL Server

I have Sql server data files saved on external storage. I want to detach specific database. If external storage is not connected I want to drop database. Is this safe way to do that: DECLARE ...
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Combining data from multiple rows

I am relatively new when working with queries so let me apologize in advance. This is a MS 2012 Server that I will be working with. This data has been brought into a staging table through a nightly ...
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1answer
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Detect if two time periods overlap

I have an HR system and I need to detect if a new leave (time off) request conflicts with an existing one. I have written code to do this based on the entire day; I now need to do the comparison based ...
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2answers
522 views

Symmetric difference operation in Transact-SQL?

I have always known about the UNION operator in SQL, but only recently discovered that there were other set operators, INTERSECT and EXCEPT. I haven't been able to find an operator that does the ...
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SQL Server - Best practices on debugging extremely complex stored procedures [closed]

I recently inherited a MESS of a search. It's around 10,000 lines of code in the procs/functions alone. This search is aptly named the "Standard Search." It's a proc that calls about 6 other procs, ...
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Query performance while using sqlcmd [duplicate]

Possible Duplicate: Running queries with SQLCMD vs. Running queries with SSMS I have a number of scripts that query the data from different tables and consequently update them. I have ...
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How can I prove that the following T-SQL is bad for performance?

I have recently inherited a codebase with a large amount of Stored Procedures. The system they are supporting is encountering numerous performance problems which I am looking in to. A number of the ...
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Escaping T-SQL Keywords

$sql = "SELECT Kill FROM tbl_pvporderview"; Problem is that I end up with: Incorrect syntax near the keyword 'Kill'. Because kill is a T-SQL command... any way to bypass it? I can't change the ...
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Difference Between SP with BEGIN/END and without BEGIN/END

I have found some SP(stored procedure) written as, CREATE PROCEDURE [dbo].[XXX] ( -- Parameters ) BEGIN --- Actual Work END and some as CREATE PROCEDURE [dbo].[XXX] ( -- Parameters ) --- ...
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1answer
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SQL Server 2012 is putting [brackets] around Table and Column Names

Is there anyway to turn that off? I'm unable to find anything in options, and they're really a distraction.
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A Script to insert dummy Data in all tables of Database

I wanted a Script that can loop through all tables and their columns in the database and insert dummy data based on column type and size, so that i can start using the database for testing, and ...
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2answers
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How to check when statistics was last executed?

We've been having a number of issues with our indexes lately which our DBA team has attributed to statistics not having been run recently. This has made me wonder - how can I check if statistics have ...
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SQL Server - Alter table vs drop and create

Our database is SQL Server 2008 R2. We have some tables that have some varchar(500) columns that I want to switch to datetime2 or bigint. I can guarantee all the data in the columns to be switched are ...
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Truncating table without using Alter Table permission

So my DBA don't want developers to give Alter table permission. Now one of the procedure that we created requires to Truncate tables (since apparently delete only removes records, but truncate frees ...
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CASE ORDER BY with multiple columns, and different sort options

I am attempting to use a T-SQL CASE ORDER BY in a stored procedure where I am passed @OrderBy parameter as a TINYINT. @Orderby = 1 Then Date column should be ASC @Orderby = 2 Then Date column ...
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1answer
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SELECT INTO creates a new table?

I have an original table MessageQueue with six columns. When I try to do a SELECT INTO that table it creates a new (local) table called <network domain\user name>.MessageQueue with only three ...
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688 views

Help with SQL Query to XML output

I have the following query: SELECT [ID] AS [NewID] , ( CASE WHEN LEN([MiddleName]) > 0 THEN [LastName] + ', ' + [FirstName] + ' ' + LEFT([MiddleName],1) + '.' ...
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Splitting a deck of cards, and returning the results as if they were shuffled once

Lets say I have a table with a deck of cards, numbered 01-52. I could return the top and bottom cards, as if I held each side of the union's select query in my left and right hands by doing a: select ...
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2answers
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How do I delete unique rows from a table with duplicate keys?

I have the following data: road | ID | other column | other column | ------------------+------+---------------+--------------+ MAIN ST | 1 | ... | ...
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Select rows after a specific ID

I have the following query, it chooses from a news articles table. Due to multiple sorting factors, I cannot locate the next page of date. The parameter I have is the last ID in the query result set, ...
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Conditional WHERE Clause in a Table Valued Function

I have a table valued function CREATE FUNCTION [dbo].[DateRange] ( @StartDate date, @EndDate date, @Location varchar(25), @Device varchar(25) ) ...
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2answers
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How to extract pipe-delimited data using BCP?

I tried the following command USE <DBNAME> SELECT 'exec master..xp_cmdshell' + ' ''' + 'bcp' + ' ' + TABLE_CATALOG + '.' + TABLE_SCHEMA + '.' + TABLE_NAME + ' out' + ' D:\' + TABLE_NAME + ...
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1answer
143 views

SQL “Standard” guide?

I am currently learning TSQL and am learning that were possible, I should use "standard" SQL dialect. Where can I find out which commands are "standard" and which are TSQL?
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Update Statement takes forever to complete [closed]

I have table around 1250000 records, and 80 columns Table Structure CREATE TABLE [dbo].[Table] ( [Column1] [int] IDENTITY(1, 1) NOT FOR REPLICATION NOT NULL, [Column2] [int] NULL, [Column3] [int] ...
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T-SQL - Enforce Atomic Operations x Locks

I have a database model that works similar to a banking account (one table for operations, and a trigger to update the balance). I'm currently using SQL Server 2008 R2. Table OPERATIONS: VL_CREDIT ...
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1answer
820 views

How to replace “set rowcount”

Currently on SQL Server 2008/R2. I just read here that "set rowcount" is being deprecated in some post 2012 release: http://technet.microsoft.com/en-us/library/ms188774.aspx We have some legacy code ...
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Why can't I view the SQL Server database created by a web application?

I have an ASP.NET MVC web application deployed to IIS on a Windows Server 2012 machine. When the application first starts, it will create the database and tables it needs if necessary through Entity ...
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Split/explode comma delimited string field into SQL query

I have field id_list='1234,23,56,576,1231,567,122,87876,57553,1216' and I want to use it to search IN this field: SELECT * FROM table1 WHERE id IN (id_list) id is integer id_list is varchar/text ...
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1answer
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Is it “legal” to CREATE and DROP #SomeTable more than once?

I've got my code sort of segregated as "coherent blocks" that I can insert into a longer "configuration script" over and over, and one of the patterns I'm using is this: CREATE TABLE #WidgetSetting ...
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1answer
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Is it possible in SQL Server to change default “order by” direction from asc to desc?

This question came up in a discussion at work... given the following T-SQL statement: select firstname, lastname from users order by lastname; the default sort order on the order by clause is asc. ...