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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-1
votes
1answer
197 views

Validate each parent intermediary is also a parent to itself

I want to validate where each parent intermediary is also a parent to itself. So this query should return invalid parents in SELECT if table has any. I need to do is first of all get all parents ...
-1
votes
1answer
542 views

How to merge data from 2 databases [duplicate]

I have a SQL-Server database that crashed while I was away on vacation. All info from 5/2/13 is missing from our current database because my replacement implemented a back-up of the database from ...
0
votes
1answer
177 views

PostgreSQL created a PostgreSQL user on mac. Is this necessary?

I just installed PostgreSQL on a Mac (Mountain Lion) today. The installer created a mac user PostgreSQL on my machine. After installation, the user still exists. My question is that why postgreSQL ...
0
votes
2answers
899 views

how to find similar word with more similarities

how to Find words with length less than or equal... declare @inp nvarchar(max),@data nvarchar(max) set @inp='You can dance, you can jive, having .... jove... jve, ...' set @data = 'jeve' ...
4
votes
1answer
232 views

How to view the full, flattened query underlying a Postgresql view?

If I have a view on a view on a view (etc.), is there a way to show the full query that this expands/flattens to?
2
votes
4answers
5k views

How to find all positions of a string within another string

How can I find all the positions with patindex in a table or variable? declare @name nvarchar(max) set @name ='ali reza dar yek shabe barani ba yek ' + 'dokhtare khoshkel be disco raft va ali ...
0
votes
2answers
197 views

Using a keywords table with multiple other tables

Using MySQL I need help determining how to model a Keywords table to three different tables (Products, Certifications, and Exams) - I have included my model which is using what I refer to as ...
0
votes
1answer
54 views

Get Maximum Value

I am using MS Access database. I have a table (Proposal) with the following properties: ProposalID - PK, Title, RequestedAmount, ResearcherID - FK I want to run an SQL query to get the candidate that ...
0
votes
1answer
1k views

Query that ranks students order by marks and give the position of student even when there are students with equal marks

I need an sql that will rank students order by marks scored in a specific examtyp e.g CAT1 and give exact position even if the students have equal marks e.g in this sample data admNo 2525 and admNo ...
-2
votes
2answers
2k views

Export complete database to a remote server including (Tables, Stored Procedures, Triggers)

How do we "export" a complete Microsoft SQL server database from one server to a "remote" server (including all the "stored procedures" and "triggers"). The export facility provided in the management ...
1
vote
2answers
107 views

Saving a SQL Server database to a file and opening it on another server under any database name

I am trying to find an efficient way of being able to physically save and open a SQL Server database like how it's done with Access. I would like to be able to save my entire database into a file ...
1
vote
2answers
113 views

How to backup databases to ensure data recovery

I have 15 customer databases that have minimum replication at different sites. I currently do nightly back-ups and transfer the database back-up nightly to our main server via 7zip. We recently had ...
-5
votes
1answer
267 views

Update date Column values? any please help? [closed]

I Want to copy and data in same Table and Update date Column values? any please help?
1
vote
1answer
176 views

weak entity with a many to many relationship with its owner

I have a database that keeps track of the hours worked by a contractor per week. I have one table for contractors that contains "con ID" as primary key. The other table Weekly Hours Tracker contains ...
1
vote
2answers
124 views

Is it possible to validate DML statements?

Suppose that I want to delete a user named 'abc cba' from the database. So I run the following query: DELETE FROM table WHERE fname = 'abc' AND last name = 'cba'; commit; Now, there can be more ...
11
votes
3answers
4k views

Choosing a database for storing large amount of data and allowing for thousands of writes [closed]

I am working on a project that has some serious requirements regarding its database and having hard time choosing the best solution. The details are: Database will easily reach tens of terabytes of ...
1
vote
1answer
578 views

How do I refresh SQL server cross database references after a database is reattached with a different name? (Are there hidden synonyms?)

I have 2 seperate SQL databases on the same SQL instance. Database1 references tables on Database2 in its views and stored procedures. Everything was working fine until we had to create a fresh ...
-1
votes
1answer
106 views

Why is this mysql query wrong? [closed]

I try to run the following sql query in mysql SET @rank:=0; WITH TEMP ( SELECT @rank := @rank + 1 AS ROW_ID , UUID() as RANDOM_VALUE,D.* FROM house_information_new D ORDER BY ...
1
vote
1answer
1k views

Using a Having clause with an outer join

I want to use a "having" clause with an outer join, using a column that is used in the outer join. This is my query: SELECT I.CARD_BIN BIN FROM GE_ICA_BIN I LEFT OUTER JOIN GE_PAYEE_VALIDATION ...
3
votes
3answers
3k views

Transfer data from DB2 to Oracle

I want to transfer data from an old DB2 system to a new Oracle database. How should I go about doing this?
2
votes
1answer
104 views

Backing up SQL Server 2008 database in different recovery model

We currently have a production environment with 10 SQL Server 2008 databases in Full recovery mode (for obvious reasons). We back these databases up fully at a frequent interval, but due to the Full ...
2
votes
1answer
931 views

Trigger doesn't run when value of a column changes from null to 1

I have this trigger: delimiter $$ create trigger tr after update on t1 for each row begin if new.col1 !=old.col1 then update t2 set col2 =1 where t2.col3=t1.col3; end if; end $$ This ...
-6
votes
2answers
491 views

Challenge: Build MySQL table that's not in first normal form [closed]

I have read numerous books and articles about database design and SQL in which it is said that a database should be in first normal form (1NF). (Some then go on to describe situations in which it may ...
0
votes
2answers
5k views

Find Underlying Data Type (int - integer) of Oracle Table instead of number

I can create an example table using following syntax. CREATE TABLE "TABLE2" ( "COLUMN_INT" INT NOT NULL, "COLUMN_INTEGER" INTEGER NOT NULL, "COLUMN_SMALLINT" SMALLINT NOT NULL, ...
3
votes
1answer
5k views

Select first row (grouping) + add aggregate function

First have a look at this question on StackOverflow. I'm looking to accomplish the same task, except I also need to add an aggregate function (PostGIS's ST_Union) to my query. How can I combine the ...
1
vote
1answer
159 views

Can I use Try_Cast to give me a query result column with different datatypes?

I have a column that is varchar(max). It contains mostly valid XML. But sometimes it has invalid xml (that I still need). I am trying to make a view for this table that allows the value to display ...
0
votes
1answer
80 views

“Replicate” sql structure between testing and staging on same database instance

On my local development server I have a database set up which gets hooked into Entity-Framework and is then used for unit testing. Let's call it COMPANY\Database On the same server (and same database ...
2
votes
2answers
163 views

What can I do to make mysql use the expected indices?

What can I do to make mysql use the expected indices? I've got 4 tables, two containing resources, and the others containing historical changes. One pair uses indexes correctly, the other doesn't, ...
2
votes
1answer
1k views

The job failed. The owner (pc\user) of job FULL DB BACKUP does not have server access

SQL Server 2008R2 is failing to execute log backup hourly. Date 5/2/2013 10:22:19 PM Log Job History (LOG BACKUP) Step ID 0 Server pc Job Name LOG BACKUP Step ...
1
vote
2answers
511 views

Challenge. Split database 500 records in two smaller datasets, randomly

I have a database with 500 records. I want to split these records to 75% and 25% *randomly*in order to use the different datasets for training and testing to machine learning algorithms. Does anyone ...
2
votes
1answer
143 views

What are the risks for logging across databases via a trigger?

I've searched for this online and had mixed or unclear responses, and after posting on superuser, was directed over here. On SQL Server 2005, we currently log certain table changes via triggers using ...
1
vote
1answer
6k views

How can we get table name from inside trigger?

I need to pass the table name from trigger to procedure. ALTER TRIGGER [dbo].[Trg_ProjectCreation] ON [dbo].[Projects] AFTER INSERT AS BEGIN SET NOCOUNT ON; -- procedure call ...
2
votes
1answer
805 views

Restoring SQL Server 2012 database onto 2008

I am trying to restore a SQL Server 2012 database after I set the compatibility level to SQL Server 2008 by following the instructions as listed on: ...
3
votes
1answer
846 views

Create SQL Script for Statistics

I wanna create script my whole table, including all statistics and indexes. In SSM, When I right click table and create script, it gives me script for Indexes for not for statistics. If I right ...
1
vote
1answer
1k views

Upgrade SQL Server 2005 Enterprise to SQL Server 2008 R2 Standard

I understand that this is not a supported path, but does anyone have any insight about how to accomplish this? I can't seem to find any documents on the subject. I need my QA (2005) to match my ...
3
votes
3answers
12k views

how to check which background process are running in my oracle database?

To check all background process in oracle we can see using v$bgprocess view. I want to check which background process are active. Can anybody please help ? Thanks
0
votes
2answers
142 views

Database search with multi joins

I have a MySQL database and I want to perform a little bigger search. I have about 10k records in one of the tables and It's expected to grow, but slowly. The biggest problem is that to perform the ...
4
votes
1answer
1k views

Postgres: count(*) vs count(id)

I saw in the documentation the difference between count(*) and count(pk). I had been using count(pk) (where pk is a SERIAL PRIMARY KEY) not knowing about the existence of count(*). My question is ...
-1
votes
3answers
115 views

Add Contents in a Column and make them 0 [closed]

http://sqlfiddle.com/#!3/96f11/3 In the above fiddle, I need the required output in the Fiddle. ie., The UserID column in Filtered Table and Main table are equal. I need to get the Amt column data ...
1
vote
1answer
224 views

Separating tables vs having one table

At the moment I have a table setup that looks somewhat like this: create table tbl_locationcollections ( id int(11) PRIMARY KEY IDENTITY, --(Primary Key), name varchar(100) not null, ...
1
vote
1answer
72 views

Summation query with complex grouping criteria

I have a database of coded actions with this structure. {User, Date, ActionCode} I need to generate reports based on dates and action codes, and the action codes are not clean because we have to ...
1
vote
2answers
265 views

How to create trigger on database that 'triggers' when mirroring role changes from mirror to principal

I want to perform some sql when my database mirroring state changes
6
votes
2answers
3k views

tempdb logs on same drive as tempdb data or with other logs? [duplicate]

For many reasons I only have 3 hard drives (RAIDed and in an Always-On AG) for all my database files: D: Data E: Logs F: Tempdb Should the tempdb log file go on F: with the data file(s) or on E:? ...
0
votes
4answers
160 views

Selecting the first purchase item of each customer

I have a table like this: CREATE TABLE SALES ( CID NUMBER(4), PDATE DATE, ITEMCODE NUMBER(4), ITEMNAME VARCHAR2(20) ); INSERT INTO SALES VALUES (1111,'15-JAN-2011',4001,'LUX'); INSERT INTO SALES ...
0
votes
1answer
129 views

Efficient way to perform approximated search?

I have to perform a join between table_a and table_b, using three fields as key being one of them the date of the event, say, both tables have id1, id2 and evnt_time for eache record. As it happens ...
4
votes
2answers
10k views

Extract part of string based on nth instance of character

I am trying to find a way to extract part of the strings below. I need everything between the 6th and 7th \ character. \\fileServerA\d$\LiteSpeed\Wednesday\ServerA\Tlog\DBA1_TLOG_20110504_0333.SLS ...
0
votes
1answer
92 views

Combine multiple queries into single query

I am trying to run the following query: SELECT Freight.Freight_No, Freight.Available, Locomotive.Loco_No, Locomotive.Available, Driver.Driver_No, Driver.Name, ...
2
votes
2answers
3k views

Using T-SQL to dynamically create Extended Properties

I would like to add Description and Status in the Extended Properties of a large database to all my tables and columns so that someone can fill in the values. It would be very laborious to add these ...
3
votes
2answers
5k views

Creating a PostgreSQL SERIAL column using pgAdmin3

When I use pgAdmin3 to create a column of type serial, why does it instead create nextval('prices_id_seq'::regclass)? Should we keep this type defined by pgAdmin? Manually create the table with SQL ...
0
votes
1answer
586 views

MySQL stored routine performance while using PREPARE

Instead of maintaining stored routines for each database in my current environment I have decided to create separate database just for stored routines storage. Mainly I am using them for reporting. ...