Tagged Questions

An acronym for "Structured Query Language" (it's not the name of a specific DBMS product), SQL can be used in relational database management systems (RDBMS) to query, update, delete, and insert data as well as modify the structure of the database. It can also be used to manage schemas and data ...

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0answers
27 views

Time based trigger for database update [closed]

I have a database table in SQL Server as following ID | Name | ExpireTime | CountLeft 1 test 11/11/2014 2:30 5 I want to update countLeft = 0 when ExpireTime = currenttime ...
0
votes
1answer
24 views

Get Current Row and Next Row [closed]

I want to design a query which gets the row of where clause and the next row in the table of the where clause. I am looking for something like select column a, next row in table from table where ...
-4
votes
0answers
17 views

SQL Procedure of signing up [closed]

If the database needs to store an e-mail and password of each user using a procedure for signing up, how can the procedure be written?
1
vote
1answer
42 views

Join select queries on an id in SQL Server

I have three tables that SELECT from and I'd need to join the results. It feels like this should be a rather easy task but I struggle with the syntax. Working on Microsoft SQL Server Enterprise ...
0
votes
1answer
44 views

Insert values in table from front-end CategoryId

I want to add a value from front end into a table. I want to do it in asp.net. I have a table which is as below:- CategoryId int CategoryName nvarchar(50) not null ParentId ...
0
votes
0answers
21 views

Left Outer Joins in Access

I'm working on an existing Access database trying to implement some changes which will allow the estimation of cutting times for my employer (We're an industrial company who fabricate Flight Cases). ...
0
votes
1answer
23 views

Multiple left join hangs server

i've got problem with left join query. It connect's 3 tables and calculate sales value for categories. Query: SELECT categories.name, categories.id, ...
0
votes
0answers
17 views

INSERT missing FK rows at the same time

I found on this site the following SQL-Query to perform an insert (see this post): WITH sel AS ( SELECT val.description, val.type, f.id AS foo_id FROM ( VALUES ('testing', ...
0
votes
0answers
17 views

change display of rows into column using PIVOT in sql server [migrated]

This is my query: select d.disposition, count(a.serialnumber) AS SUBTOTAL FROM FADB a, FARepair b, Disposition d WHERE a.ID = b.ID AND b.DispositionID = d.DispositionID GROUP BY d.Disposition and ...
0
votes
0answers
11 views

Installing printer_php.dll onto an azure website

Has anyone been able to get this extension running on a php based azure website? The extension just basically allows you to print stuff with your printer. I've configured my php.ini to find the ...
0
votes
2answers
33 views

SQL Performance: COUNT or extra attribute?

If I want to count the number of a multivalued attribute, which way is faster: a) using COUNT(attribute) on a whole table or b) adding an extra attribute which counts these stored values (to be ...
0
votes
1answer
30 views

How to design a query that gives count of different parameters based on different condition from a single table

I have a table books containing columns as bookid, issue_date,return_date. Once a book is issued from library an issue_date corresponding to it is made into the table while return_date can have valid ...
0
votes
1answer
22 views

SQL: return values as column table

I am running this query to get all returns for a list of tickers: select return1 from STOCK_DATA where TDATE between 20130101 and 20131231 and TICKER in (SELECT DISTINCT TICKER FROM STOCK_DATA) ...
0
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0answers
43 views

Table design for optimum performance

For example let's say I have to create a table called Employee with columns EmployeeID, Name, DOB, Address, DepartmentID[FK]. So I create the table as follows with a primary key and a nonclustered ...
0
votes
1answer
18 views

Mysql pagination without offset

Let's assume I have got a table with these data: I want to order it by createdAt column DESC, and id column DESC select id, createdAt from post order by createdAt desc, id desc Now it looks like ...
0
votes
1answer
32 views

where in (sub query) vs join

just want to ask about how to optimize my query. because i feel efficiency using join instead of "where in" sub query can someone enplane the deference SELECT C.Customer_id, C.tran_id, ...
0
votes
0answers
28 views

MySQL: How to get all values in “TICKER” column`? [migrated]

I never used SQL before, I want to get all values in "TICKER" from this database: The first statement select TDATE, price, return1 from STOCK_DATA where TDATE < 20131231 and TDATE > ...
-1
votes
0answers
12 views

Template for MySQL database upgrade script

What is the equivalent of this Microsoft SQL Server upgrade script template for MySQL? I want to upgrade my database version in repeatable transactions in sequential scripts as I develop an ...
-1
votes
3answers
56 views

What is wrong with this INSERT Statement

I am trying to use this statement to insert new data into my orders table like so: $tsql2 = "INSERT INTO pedidos (numero_local, emailUser,codigopapel,cantidad, color) VALUES ('$local', '$emailOn', ...
1
vote
3answers
50 views

does the mere existence of a primary key increase query speed for large data sets?

So, I have a table with about 2.4M rows and ~30 columns. There is no unique column within the data. The data is transaction logs from stores where each transaction number is only unique on a per store ...
0
votes
0answers
30 views

Secondary File Group is not online in SQL Server

In my database there are two file groups PRIMARY and SECONDARY. The .ndf file is in SECONDARY file group. I just wanted to backup only the secondary file group. So ran following T-SQL... BACKUP ...
6
votes
3answers
108 views

Most cost efficient way to page through a poorly ordered table?

I have a table that has three columns: HashUID1, HashUID2, Address_Name (which is a textual email address, and the previous two hash colunms are of some crazy creation to link event participant tables ...
1
vote
0answers
36 views

Handling SQL updates for production deploys

I'm researching for quite a long time now (about two months) and haven't found a good approach for this, so I'll ask you experts out there in the hope of some enlightenment. I run a pretty ...
1
vote
2answers
67 views

TSQL substitute for MAX() string ranking

I have a table with repeating values (col1) and I need to return col2 based on a ranking system. In my example the ranking system is handled by MAX() giving me the highest value. I then return the ...
0
votes
0answers
5 views

SQL Server 2008 R2 - Replication - Multiple Publications on a single database

I have hit a problem and I need an idea of where to look or how to resolve. I have setup a publication and 2 subscriptions to it, 1 running on a schedule and the other running continuously. I need ...
0
votes
0answers
40 views

Thoughts on further optimizations

So I have this application. It runs on a server. There is a portion of the code that is taking around 10-15 seconds to run, it contains some queries, logic, as well as some code to update the ...
1
vote
3answers
83 views

Clustered Index improvemens for particular queries

I found a table that looks like this: CREATE TABLE [dbo].Table1 ( id INT primary key IDENTITY (1, 1), [idUser] INT NOT NULL , [Amount] INT NOT NULL , [Attempts] INT NOT NULL , ...
3
votes
4answers
260 views

Keep track of time intensive stored procedure with prints

I am no database admin nor is my SQL-foo any good (yet), but have a few tasks to get done in MSSQL, and one is a rather time intensive procedure where I fetch from a CURSOR and WHILE @@FETCH_STATUS = ...
1
vote
1answer
26 views

MAX (id) function with MySQli

How can I use the following statement to return only the record with the maximum PersonID from the table? /* Create the prepared statement */ if ($stmt = $mysqli->prepare("SELECT Max(PersonID) AS ...
0
votes
1answer
51 views

how to select first 9 numbers from other table from database using sql query?

I want to fetch first 9 numbers from matching with other column please help me to find out thank you....? SELECT MAINFILE.facno,GLMAST.fglhead FROM MAINFILE INNER JOIN GLMAST ON ...
0
votes
0answers
34 views

Should I create a Factless Fact Table or Denormalise my table

I am creating a data warehouse from a store database and I have a question regarding the design of my dimensions and facts. In the store database a table exists for Person, Person_Address and ...
0
votes
1answer
24 views

MySQL Loop Through Each Row

I have two tables, division & template, in a MySQL database. division - DivisionID - DivisionName template - TemplateID - TemplateName Here is an example of my current data ...
2
votes
1answer
54 views

How to get all logged in users to SQL Server database for this week?

I'm using SQL Server 2008R2 and I setup a testing database that I need to know who tried logging in so far. Is there a stored procedure or a View or anything that I can gather these type of ...
0
votes
1answer
20 views

Drop/Create database and create schemas all in the same script at PostgreSQL it's possible?

I'm working on a project where all the time I need to repeat this tasks: Drop database sis_db Create database sis_db Create database schemas by running a custom SQL file which contains this code: ...
1
vote
2answers
83 views

SQL Backup tuning large databases

I am tuning SQL backups using compression, writing to multiple files, and changing the BufferCount and MaxTransferSize options. I have SQL instance with a 4 TB database and several smaller databases ...
0
votes
0answers
25 views

Paging via Number of Result Record vs COUNT(*)

I have been working on fixing a piece of code for a customer that has been very slow for them. I have made that fix, and thats all lovely, but I noticed something odd in the paging. When the query ...
1
vote
1answer
49 views

Case with multiple conditions

I need to change returned value, from select statement, based on several conditions. I tried something like that: ,CASE i.DocValue WHEN 'F2' AND c.CondCode IN ('ZPR0','ZT10','Z305') THEN c.CondVal ...
1
vote
1answer
31 views

Select statement for selecting every week's log record

Here is a simplified version of the table in question: +------------------------------------------------------+ | DatabaseName | LogRecordNumber | LogTimestamp | ...
0
votes
1answer
39 views

Store the resulting list of a SELECT in a variable to count AND use the result

I have stored procedure that uses a cursor and for every fetch a duplicate SELECT, once to determine the number of IDs found (SELECT COUNT(ID) FROM TableA WHERE something.. @cur_var) and if the ...
0
votes
3answers
65 views

Get latest status of an item in the database

I have this table: ID|Item-FK |timestamp|status ============================= 1 | 123 | ... | OK 2 | 123 | ... | FAILED ... I want to query get all items which last status was FAILED. ...
0
votes
0answers
43 views

SQL Server : error 15208 Level 16, State 1, Line 1

Trying to Backup a certificate from SQL Server causes this error: Msg 15208, Level 16, State 1, Line 1 The certificate, asymmetric key, or private key file does not exist or has invalid format. ...
1
vote
1answer
84 views

How can I design this database?

So I have a ton of transaction logs in pipe-separated format spread across a few dozen files. Concatenated into one file, it's around 2.4 million lines. Each transaction has a store number and a ...
0
votes
1answer
34 views

Stored proc getting ANSI_NULLS and ANSI_WARNINGS error when executed by application

I have a stored procedure that is getting the following error when executed via an application : Heterogeneous queries require the ANSI_NULLS and ANSI_WARNINGS options to be set for the ...
1
vote
1answer
39 views

SQLAnywhere: Visualize in real time CPU and RAM consumption of sql connections

I want to keep track of which connection use most of resources. Within Sybase Central (SQL Anywhere 9, 12), for each server and database, we have pane to check in real time All Connected Users and ...
1
vote
1answer
19 views

Adding a “position” number in Mysql

I got the following query and result currently: mysql> SELECT songname,COUNT(*) as count FROM etrstats WHERE songname != '' AND `when` >= DATE_SUB(CURRENT_DATE, INTERVAL 1 MONTH) GROUP BY ...
4
votes
2answers
110 views

How to store immutable, unique, ordered, lists?

I have an entity with millions of instances. Each instance has to reference an ordered list of items. The lists have to be unique so no list will be stored more than once. But once created, both lists ...
1
vote
2answers
66 views

Are there any special characters that are never allowed in SQL?

I am a Java programmer. We always make database-related things configurable so that they can be easily modified by the DB team as per their requirements. I want to make some queries as configurable, ...
0
votes
1answer
23 views

Design: Fitting variable hierarchy of text files into a relational db

I have a large data corpus (several TB) made up of data gathered through customer support queries. I've been asked to set up a database to make this data more accessible, but as I'm kind of new to ...
0
votes
1answer
28 views

SQL Server 2012 how to create new schema from existing database selecting only subset of database objects?

I'm looking for a way to create new schema from existing database selecting only subset of database objects. I.e. I want to have some "database representation" which only includes subset of tables ...
1
vote
1answer
41 views

Getting Time Duration

I have a table like below: I want to get time duration for each record which SPEED is greater than 100. I written a function for that, it’s working fine , but my problem was i have millions of ...