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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1answer
18 views

Slow PostgreSQL query

I'm building a search interface for a web site that currently searches through approximately 2 million pieces of real estate with approximately 60 million attributes (address, city, state, ZIP, beds, ...
3
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1answer
128 views

How can I prevent having inconsistent data under isolation level serializable in Oracle SQL?

I have the following table: InStores +--------+---------+-----+ | ProdID | StoreID | qty | +--------+---------+-----+ | p1 | s1 | 25 | | p1 | s2 | 70 | +--------+---------+-----+ ...
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1answer
30 views

Why is this select statement not returning what I've provided?

I have 3 tables in my SQL Server I am wondering why is my select statement not working or giving the result with my condition in the where clause. I learned back there to use this kind of method.. ...
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1answer
207 views

Sql Server sys.Traces log

Working with traces on production server I found some mysterious entries to me in sys.Traces, When I run below query it shows me status of all traces as ‘Paused’ along with entries in ...
2
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2answers
609 views

How to get SQLCMD to output errors and warnings only?

How can you get SQLCMD, when executing a SQL script file, to just output any errors or warnings it encounters? I essentially dont want information based messages to be output.
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2answers
612 views

SCCM 2007 SQL Query Code - Help Needed

I am trying to write a report where I grab data showing all server collections with maintenance windows. How I want to do this is to show only those server collections where those computers are also ...
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2answers
85 views

How to know how long my server is started

I am working with postgresql-9.4 and for support and monitoring tasks I need to know how long my server is started? Is there any function or way to know this? Is there an sql way to know it? I ...
0
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0answers
30 views

How to break down a sql select query into smaller chunks? [on hold]

I'm querying my SQL Server database from C# and the resulting dataset throws a MaxReceivedMessageSize exceeded exception. My MaxReceivedMessageSize size is set to size 40960000, and I'd like to keep ...
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2answers
7k views

exporting oracle tables on command line as sql files

I use exp and expdp to export database tables on command line but it generates binary .dmp files. I want to export/import tables as .sql* files on command line like pl/sql developer app can do. Is ...
0
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1answer
164 views

How can I optimize this Cross Table COUNT() mysql query?

I am trying to cut down the retrieval speed of this MySQL query. All instances of COUNT() point to the PRIMARY key of each field. Currently this query makes my MySQL hang. It seems ridiculous as I'm ...
0
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0answers
23 views

not a GROUP BY expression [on hold]

I am not getting answer of this query SELECT DISTINCT HPD_Service_Type.owner_support_company,HPD_Service_Type.owner_support_organization, HPD_Service_Type.Service_Type, ...
0
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2answers
173 views

Dealing with data stored as arrays in a MySQL DB

So I know storing arrays in a DB field is wrong and would never do it myself, however a 3rd party plugin my company is using stores data in an array and I was wondering if you could help me try to ...
2
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2answers
179 views

Logical problem with a database model

Beforehand the table names and columns are in Spanish, my native language is Spanish. (table names have been now edited to English) I've got a database to manage the tickets sales of a trip that is ...
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1answer
179 views

System.Data.Entity.Infrastructure.CommitFailedException: C# Multithreading & SQL Server 2012

We have a C# multi threaded (100 threads) program which reads the records from the DB and each thread picks up one record (one Entity Framework connection per thread) and update the a single DB table. ...
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0answers
15 views

Trying to match transactions from two tables and list all unmatched rows

I'm having two tables of transactions and there are couple same transactions in both tables (same trade date, same quantity, same amount, same index). I'm having problems while two trades have same ...
0
votes
1answer
21 views

Get list of students having actions in Oracle

I have a table of student actions (id, student_id, type, and quarter). I need to get a list of all the students, along w/ a flag of whether they had a particular action in the current quarter, and the ...
0
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1answer
4k views

Select from a list of values from JSON encoded data

I have saved the details of the product in JSON format. I am wondering how to select from a list of values from a "JSON_ENCODED DATA" For Example I want to select TV with screen_type as LED or LCD. ...
2
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1answer
24 views

Is there any database with versioning (column based) built in?

I'm wondering if there is a database (SQL or NOSQL) which provides versioning for for the records ( if the column/field/property is enabled for versioning). I'm developing an authentication software ...
5
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2answers
6k views

How to get last identity row Inserted when using instead of trigger

When I insert into tables using instead of triggers, @@Identity, IDENT_CURRENT('Table') and SCOPE_IDENTITY() return null. How I can get the last identity of inserted row?
0
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0answers
23 views

Help with existing database normalization [on hold]

For a project I have to normalize an excising database. I've no idea how I'm supposed to do this. I have no experience at all in database normalization. I now got a document with all fields, from ...
5
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1answer
3k views

Error 18456 error severity 14 state 5 SQL Server 2012 SCCM2012 SP1

We had a primary site for SCCM 2012 SP1 running fine. I then installed CAS for SCCM on another server. The prerequisites required me to change the collation on the existing server. I did this and ran ...
1
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1answer
98 views

Improve SQL Performance with LIKE '%ABC%' QUERY

I know that using a LIKE '%ABC%' query will not use indexes and there is little that can be changed to the query to improve this, however what can do to make execution quicker? At this stage we ...
4
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6answers
1k views

How to find the nth highest salary in SQL?

I have found a query to find the nth highest salary from Employee table , but i don't understand the logic of (N-1)? EmpID Salary 1 90000 2 80000 3 54000 4 ...
1
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1answer
58 views

Question about the UNION operator and its implicit data type conversions

Is there a limit to the number of UNION operators to combine query results? I have an odd situation where I have a table called TransmittalSheet TS that have a double (1 to Many) relationships with ...
0
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1answer
45 views

How to add a column from another table?

I'm starting to using SQL statements in my Oracle database XE (tables and relations made by me) and I'm having a hard time to understand how can I put a column from another table. The example in ...
2
votes
1answer
34 views

Select Column value based on two values in another column

I am using the below table: 1 0051ML66220600132482 06:00:00 06:00:00 1538 100 0 1 2 0051ML66220600132482 06:00:00 06:00:00 1540 200 0 0 3 ...
2
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1answer
53 views

DB2 CASE statement faster with parentheses around entire WHEN

Trying to optimize slow queries, someone on my team come across this. Having this in our stored proc: CASE WHEN MYCOL BETWEEN @STARTNUM AND @ENDNUM AND RECTYPE = 'RO' THEN 1 ELSE 0 ...
2
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2answers
54 views

String that contains letters representing a negative number

I would like for every string that has a letter on the end make it a negative value. <field> = '00000000014545p';--Varchar(15) <field> = '00000000012645x';--Varchar(15) <field> = ...
2
votes
4answers
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
1answer
168 views

Very slow update with subquery (different tables)

I run this query to update "domains" table based on "log" table: UPDATE domains SET domains.mx_collected = 0 WHERE domains.domain IN (SELECT log.mail as domain_name FROM log WHERE `time` >= ...
5
votes
1answer
428 views

ERWIN create and use database

Im trying to generate physical database from my logical model using ERWIN 7. All is well in the script that is generated automatically, there is only the problem that the model is created in the ...
0
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2answers
432 views

SQL Server compact- Query that return 2 constant columns even if query didn't return data

Please look at the following simple query: Select CustomerID From Customers c Where c.CustomerId = "1234" I want to write similar query that does the following: Always return 2 columns with ...
0
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1answer
19 views

Access query with “last” and display the rest too [closed]

I have an Access DB about measuring tools. I have 2 tables: tblTools, which countains the details of the device, the tblCalibration contains the which device when was calibrated. I wrote a query of ...
2
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1answer
478 views

How to allow connections to SQL Server with 2 differents ip

I have a small issue here: I have a SQL Server instance 2012 (let's call it INSTANCE) on a cluster. I also have 2 network interfaces for this instance: SQLINSTANCE.my.metwork ...
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votes
0answers
17 views

Get column name in sql table according to particular value [on hold]

Table name is currentreport and in table i have columns (id,challan1,challan2,challan3) and value is inserting in the table now i want to know the name of column in which i insert the chalan no. for ...
1
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1answer
351 views

Designing a High Score/Leaderboard table

I'm looking for input on how to design a highscore table for a game I'm creating. The database I'm using is postgres. That's not really something I can or want to change (unless there's very good ...
1
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1answer
294 views

Database Mirroring and Replication in SQL Server 2008 R2

I have configured the mirroring and replication between 4 servers (A,B,C,D).i.e, Mirroring between A to B and C to D, Replication between A and C. The configuration was a success and I am able test ...
0
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2answers
83 views

How to this query? [on hold]

First of all, I know what I am about to show you is a completely DB mess but I just got it like this. Tables : Authors manufacturers_id manufacturers_name 1 Name1 2 ...
2
votes
1answer
30 views

Display multiple IP address values for one system in a single row

I cannot for the life of me get the systems with multiple IPs to display under one row. Below is the current SQL statement I have. systems with more than one IP show up as duplicated on the report. ...
1
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2answers
61 views

Normalization of library book table with multiple authors

I have a database structure with two tables: The first one is called Author, has two columns (AuthID, AuthName) and its Primary Key is (PK_AuthID). The second one is called Book and has three ...
10
votes
1answer
4k views

Deadlock error isn't returning the deadlock SQL

Transaction (Process ID) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. I am getting this error randomly when one of my ...
14
votes
1answer
14k views

Difference between Hash, Merge and Loop join?

In SQL Server you can specify the join hints: HASH JOIN MERGE JOIN LOOP JOIN What is the definition of those three join hints, and when should each be used?
0
votes
0answers
32 views

How to retrieve data from database related to the authenticated user (after login) [on hold]

I have an authentication form in my jquery mobile app and I wanna be able to authenticate users using a wcf webservice that'll connect to my postgresql database and check their credentials. Now my ...
-1
votes
0answers
49 views

SELECT FROM OTHER TABLE WITH TWO SAME COLUMNS [on hold]

I have problemm with sql SELECT Emp Table | ID_E | NAME | ------------- | 1 | JAMES| Countries Table | ID_E | COUNTRY | ---------------- | 1 | USA | | 1 | UK | select p.id, ...
0
votes
1answer
178 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 ...
1
vote
1answer
2k views

Sybase SQL Anywhere 12 - Get all indexes which are unique -> ambigious sysindexes error

we are using a Sybase SQL Anywhere 12 db. In the db there are indices, which are unique, but shouldn't be unique. Therefore I search for a quick way to list all tables with unique primary keys. I ...
4
votes
1answer
31 views

Does NTILE work over floating point numbers?

I am trying to use NTILE on my data using a float data type in my PARTITION BY clause. Please excuse the contrived example, but I think the best way to illustrate my question and confusion is through ...
2
votes
2answers
826 views

Designing database with Category and Tags for Posts - Seeking for guidance/advice

I'm not really a database novice but I'm not an expert either. Problem: I'm having this difficulty on designing my Post, Category and Tags relationship. I've read Normalization many times but could ...
2
votes
1answer
78 views

Query looks optimal but logical reads is huge

I run the following (really simple) query in SQL Server: SELECT MAX(PK_Field1) FROM MainTable kh WHERE kh.PK_Field1 >= '2014-12-01T00:00:00' AND kh.PK_Field2 = 1572 AND ...
1
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1answer
27 views

What does: SET @Variable1 = (Select field1 From INSERTED) mean?

I'm trying to understand an existing Trigger on one of my tables (DocumentDistribution), that it seems is the bridge table between DocumentInfo and DocumentSource tables. I don’t understand how this ...