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• How do I change this query to linq to sql?

  - by Piyush

  Query: select emp.empname as Name, dep.depname as Department from Employee as emp inner join Department as dep on emp.depid=dep.depid where emp.id='2' How can I change this to linq to sql?

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• Linq, how to delete items in the middle of a query return?

  - by 5YrsLaterDBA

  I got a list of objects in the following query. How to delete items in the middle, saying I want to delete item in 2, 5, and 7 position? thanks var archivedPwds = from archivedPwd in db.PasswordArchive where archivedPwd.UserId == userId orderby archivedPwd.DateChanged select archivedPwd;

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• SQL Server 2008 > how to get service startup parameter values by query?

  - by Sean Ochoa

  Is it possible to query for the SQL Server 2008 service startup parameter values using T-SQL? I'm specifically looking for the -g parameter that indicates how much memory that SQL Server will leave available for memory allocations within the SQL Server process, but outside the SQL Server memory pool [msdn reference].

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• Mysql query to get distict hotel id with minimum price and star?

  - by user1325929

  Current table hotel_id | price | star 1100 | 1999 | 3 1100 | 1565 | 3 1100 | 2000 | 3 1101 | 2010 | 4 1101 | 2050 | 4 1102 | 5599 | 5 1102 | 6599 | 5 Required result: distinct hotels with minimum price and it's star hotel_id | price | star 1100 | 1565 | 3 1101 | 2010 | 4 1102 | 5599 | 5 I wrote query as SELECT DISTINCT hotel_id, min(price),star FROM MyTable. It is giving only 1 row instead of 3

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• In SQL, can we always write an inner join statement as a main query and subquery?

  - by Jian Lin

  In SQL, can we always write an inner join statement as a main query and subquery? For example, select * from gifts g where g.giftID in (select giftID from sentGifts); can do a join and show the gifts sent in the sentGifts table, but it won't be able to show the sentTime because that is inside the subquery?

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• How do you do a 'like' query in appengine JPA?

  - by Mark M

  I know there is a limited version of a LIKE query in the App engine's datastore where you can only search on the end of a string but I can't seem to find the syntax. I want to do something like this SELECT * FROM MyTable WHERE name LIKE ji%

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• Can i use a parameter multiple times in the qame query?

  - by djerry

  Hey guys, i was wondering, can a parameter be used more then once in the same query, like this : MySqlParameter oPar0 = new MySqlParameter("e164", MySqlDbType.String); oPar0.Value = user.E164; string sSQL0 = "Delete from callmone.call where (caller=?e164 or called=?e164);"; clsDatabase.ExecuteSQL(sSQL0, oPar0); Is this possible or should i write 2 parameters?

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• SQL SERVER Query result in CSV format is possible?

  - by gopal

  Hi, Is it possible to get the query result in .CSV file format from SQL SERVER 2000 and above versions? If so can we use this feature from an asp.net application to get the result in CSV format? If so how can we do this?

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• How to execute query with IN clause in spring?

  - by GK

  I have following code : try { MapSqlParameterSource parameters = new MapSqlParameterSource(); parameters.addValue("ids", year); return this.template.getJdbcOperations().query( "SELECT * FROM INCOME WHERE PROVNUM=? AND FISCALDATE IN ( :ids )", this.rowMapper, parameters); }catch (EmptyResultDataAccessException ex) { return null; } But i am not able to send the value for PROVNUM. how to do that? need help, thanks.

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• What SQL query should I perform to get the result set expected?

  - by texai

  What SQL query should I perform to get the result set expected, giving the first element of the chain (2) as input data, or any of them ? table name: changes +----+---------------+---------------+ | id | new_record_id | old_record_id | +----+---------------+---------------+ | 1| 4| 2| | -- non relevant data -- | | 6| 7| 4| | -- non relevant data -- | | 11| 13| 7| | 12| 14| 13| | -- non relevant data -- | | 31| 20| 14| +----+---------------+---------------+ Result set expected: +--+ | 2| | 4| | 7| |13| |14| |20| +--+ I know I should consider change my data model, but: What if I couldn't? Thank you in advance!

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• How do I modify the hundards of records based on my query result?

  - by Nano HE

  Hi, I inserted some error record to my table, I can query via the sql below and found hundards of record marked with half. SELECT * FROM `marathon` WHERE gender = 'male' && distance = 'half'; How to write a SQL then I can modify the result rows distance from 'half' to 'full'. Thank you.

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• How to skip an empty LIKE operator in a multiple LIKE query?

  - by alex

  I notice my query doesn't behave correctly if one of the like variables is empty: SELECT name FROM employee WHERE name LIKE '%a%' AND color LIKE '%A%' AND city LIKE '%b%' AND country LIKE '%B%' AND sport LIKE '%c%' AND hobby LIKE '%C%' Now when a and A are not empty it works but when a, A and c are not empty the c part is not excuted so it seems? How can I fix this?

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• Possible to assign a data type to an anonymous type's members in a linq query?

  - by Abe Miessler

  If I have a linq query that creates the anonymous type below: select new { lf.id, lf.name, lf.desc, plf.childId }; Is it possible to assign a specific type to one of the members? Specifically I would like to make lf.id a null-able int rather than an int...

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• How do I compare a DateTime column to now() in a query filter in SqlAlchemy?

  - by Ben

  I have a table with an 'expires' datetime column. I want to find all the items that have an 'expires' date earlier than now. I've tried session.query(Item).filter(Item.expires < now()) but it doesn't return anything regardless of the dates in the table. I'm using PostgreSQL 8.4. How do I do this comparison?

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• Can I get the full query that a PreparedStatement is about to execute?

  - by ufk

  I'm working with PreparedStatement with MySQL server. example: String myQuery = "select id from user where name = ?"; PreparedStatement stmt = sqlConnection.prepareStatement(myQuery); stmt.setString(1, "test"); stmt.executeQUery(); ResultSet rs = stmt.getResultSet(); How can I receive the full SQL query that is about to be executed on the MySQL server? thanks!

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• How to check results of LINQ to SQL query?

  - by rem

  In a WPF app I'd like to check if a return of a LINQ to SQL query contains some records, but my approach doesn't work: TdbDataContext context = new TdbDataContext(); var sh = from p in context.Items where p.Selected == true select p; if (sh == null) { MessageBox.Show("There are no Selected Items"); } Where am I wrong?

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• what does positional and named parameter in a query mean?

  - by ajsie

  here we got a positional parameter: SELECT u FROM ForumUser u WHERE u.id = ?1 and here a named parameter: SELECT u FROM ForumUser u WHERE u.username = :name this is DQL (doctrine query language) but i think the concept is the same. could someone please explain what these mean and do?

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• how to improve performance of update query in sql?

  - by angel ansari

  I want to improve the performance of this update query because when it take lots of time to execute: Qry = "update tab1 set cDate=GetDate() where right('000000000000'+in_num,12)='" & InvNo.PadLeft(12, "0") & "' and (Total-Amount)<>Balance <>Balance and cDate is null"

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• How to query by recent date and value in SQL?

  - by wsb3383

  I have a table with three columns: patient_id, obs_date, and weight_val. patient_id stores patient identification #, weight_val stores a weight value, and obs_date stores the date when the weight reading was taken. So, a patient can have many different weight readings at different dates. How do you write a query for: select all patients whose last weight reading is 120?

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• Whats query can be used to get the details of Indexes of any table?

  - by Parth

  Whats query can be used to get the details of Indexes of any table? I need this to find out primarykey/autoincremented value of any table.. Please help/Guide me...

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• Can "Distinct" key Word be used twice in a single Select Query?

  - by OM The Eternity

  Can "Distinct" key Word be used twice in a single Select Query? like wise: select DISTINCT(trackid), DISTINCT(table_name) from jos_audittrail where live = 0 AND operation = UPDATE Thanks

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• how to run a query from the VBA Editor window in ACCESS?

  - by every_answer_gets_a_point

  i would like to do something like this: DoCmd.OpenQuery "select * from some_table;" how would i do this? please keep in mind i don't want create a new query, save it, and run it, i just want to type the select statement in the vba code and run it.

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• Query to get the names of all tables in SQL Server 2008 Database.

  - by John H.

  Is it possible to write a query that will give me the names of all the tables in an SQL Server database? I'm working on some 'after the fact' documentation on a system I didn't create and am looking for a shortcut to get a listing of the tables in a database.

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• Can I use TSQL to operate on normal os files? Such as create a .bat file and write some query result

  - by Yousui

  Hi guys, Can I use TSQL to operate on normal operating system files? Such as create a .bat file at c:\test and write some query result into that batch file? Thanks.

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• MySQL VIEW vs. embedded query, which one is faster?

  - by Vincenzo

  I'm going to optimize a MySQL embedded query with a view, but I'm not sure whether it will give an effect: SELECT id FROM (SELECT * FROM t); I want to convert it to: CREATE VIEW v AS SELECT * FROM t; SELECT id FROM v; I've heard about "indexed views" in SQL Server, but I'm not sure about MySQL. Any help would be appreciated. Thanks!

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