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. ...

learn more… | top users | synonyms (1)

0
votes
2answers
64 views

How can i update my database from another database using temporary tables?

I want to update tables of my database using another big database every day with using temporary tables and without returning result. How can i update it? This my temporary table : use data_pro; ...
0
votes
2answers
38 views

Retrieve Data from a Specific Database [closed]

Goal: I want to retrieve the value of [data].[Mobiles] when you use a query document that is for the database [test] (use [test]) Problem: Based on picture two, I cannot retrieve the value ...
1
vote
0answers
24 views

Count query help needed with unique records [migrated]

I have this following data-structure and I am trying to find unique ID where value Alphabets value Equals to A and B (i.e. select ID = 1, but not ID = 3 or 5). and also find unique ID where value ...
-1
votes
2answers
27 views

SQL: Find row number with column entry of a specific string [closed]

I'm have an MS SQL Server 2014 Express database which I can search using a PHP script on my server to find if a string exists in the database. My SQL code is: IF EXISTS (SELECT * FROM TABLE WHERE ...
0
votes
0answers
11 views

Oracle: Recursively self referential join with nth level record

I have self referential table like this: id |level | parent_id ---------------------- 1 |1 |null 2 |1 |null 3 |2 |1 4 |2 |1 5 |2 |2 6 |3 |5 7 |3 |3 ...
0
votes
4answers
46 views

Insert from Another Table + Removing Duplicate Entries in Postgres

I'm trying to insert data from one PostgreSQL table to another while removing duplicate entries but I'm having some trouble with the code. I have two tables I'm working with: mytesttable, which ...
0
votes
2answers
212 views

What's faster: two UPDATEs with WHERE (in / not in) or one UPDATE with CASE?

What's best performance wise, two separate UPDATEs: UPDATE table1 SET enabled = 0 WHERE code NOT IN ( SELECT id FROM table2 ); UPDATE table1 SET enabled = 1 WHERE ...
1
vote
2answers
72 views

Group by month and year given yyyy-mm-dd as a date

I have a list of incidents and dates along with them, yyyy-mm-dd then a category. I need to order by the category (speeding tickets, DUIs, etc...) for each month in a year. This is what the two ...
2
votes
3answers
365 views

Listener pointing to incorrect AlwaysOn Availability Group

All, Thanks in advance I have two instances of SQL Server 2012 SP1 on a three node WSFC with a HAdr group on each instance with a corresponding listener. Instance 1's listener points to Instance 1, ...
7
votes
3answers
517 views

Use 'default value' in table when NULL

I am building a config table and want one row to be the default value. For the example, I have a list table of all my databases and a msg table of my return values. In the msg table, I have one row ...
1
vote
1answer
22 views

To find out the sum total of GRNQty and GRNValue of particular item from column 1

Query 1 # SELECT spi.Item,spi.ItemName,supdd.PackageID,spi.Specifics,iteb.brandname,supdd.Qty AS GRNQty,supdd.GP AS UnitPrice,(supdd.Qty * Supdd.GP) AS GRNValue FROM suppdeldetail AS supdd ...
2
votes
2answers
45 views

Query Row Count for All Tables

I need help creating an MSSQL query to pass in every table name to the query below, which returns the number of rows. This is how I get the row count for a single table: SELECT Total_Rows = ...
1
vote
1answer
250 views

I need advice on these queries

could you help me optimize these queries? here are queries, please note that you see something like OR 1=1 OR those are values I pass via php and may change. query#1: SELECT posts.status, ...
2
votes
1answer
45 views

How to use a view to span two tables that are identical

We have table A that receives data from our shop floor and we currently have it so that the data is moved from table A to table B after 5 years. I want to streamline this but need help creating a ...
2
votes
1answer
83 views

How to select from 3 tables while using count on 1, and sum on another?

I'm stuck on this one query. Here is my setup: table 1 (shows) show_user show_count table 2 (views) view_user view_views table 3 (users) user user_name What I need to is produce results ...
1
vote
1answer
690 views

MySQL DB structure with Main category and several nested sub categories

I am looking to create a set of fields on my webpage identical to what eBay uses on their category selection page when you are selling something. For my purposes I am doing motorcycles, power sports, ...
1
vote
2answers
36 views

Join Two queries with different declarations

I need to join two different queries to get some columns from both. The first one has a CTE. Query1: WITH StatusChanges AS ( SELECT HistoryID,PartID,Status, DateAdded, ...
4
votes
0answers
87 views

Why is query thousands of times slower with DESC?

I have a PostgreSQL database (AWS RDS) and ran the following queries in psql: livenet=> EXPLAIN ANALYZE SELECT * FROM outputs ORDER BY height LIMIT 10; Limit (cost=0.57..36.82 rows=10 ...
2
votes
0answers
61 views

Weekly SQL database backup failing

I have a weekly SQL database backup job that is failing. If I look at the end of the history of the job, I see the following messages: Executing query "USE [msdb] ".: 2% complete End Progress ...
-2
votes
0answers
10 views

I want to move the listbox one to another listbox and update the particular listbox value [migrated]

Here, Below i used the code. I am new in VBA. I am trying to move the one list box to another listbox, but I am not able to update the database table. I am struggle on few days. Why this error came ...
4
votes
0answers
132 views

How to Audit for Access with Cross Database Ownership Chaining

I've just joined the data team of a new company and we have a large SQL Server environment (100+ instances) and cross database ownership chaining is on by what I gather is a necessity. I'm looking for ...
1
vote
5answers
79 views

TSQL insert table using view — performance issue

I have a big view joining multiple tables that in a regular basis materialists itself into a table (this step occurs for viz's tool read a table instead of a view during data source refresh): select ...
0
votes
1answer
234 views

SSIS Dataflow Task issue, moving data from SQL Server 2008 to MySQL via ADO.Net

Can you please help me in getting this problem solved.. I'm trying to build a SSIS package where I'm moving the data from SQL Server 2008 to MySQL. However I'm getting a weird problem in dataflow ...
0
votes
0answers
440 views

Oracle Flashback Archive aka Total Recall in MySQL [closed]

What would you suggest as a replacement system to achieve the same functionality of Oracle Flashback Archive aka Total Recall in other DBMS, in general or specifically in MySQL or MariaDB? ...
0
votes
1answer
36 views

How to make sum of minutes into (Hours : Minutes) format

How to add (sum) two fields (Data Type=Money) into hours:Minutes format Query: SELECT ( SELECT ISNULL(SUM(action.service_time), 0) AS Expr1 FROM dbo.act_reg AS action INNER JOIN dbo.act_type ...
2
votes
0answers
41 views

Select number of records until the sum is less than 'n' - Access SQL

I am working in Microsoft Access. My requirement is: user will give any percentage value and I have to find the number of IDs which form the percentage of the 'Value' column. For eg in the below ...
1
vote
1answer
46 views

To find data in Multiple tables and delete it?

I am using a PostgreSQL server. Suppose I have 200 values in a master table that need to be deleted. There are 9 other tables referencing this master table. The other 9 tables not only reference the ...
5
votes
5answers
8k views

Emulate REGEXP like behaviour in DB2 SQL

I posted the same on stackoverflow (please, let me know if I have to delete one). I'm working on a DB2 database and as far as I can see regexp is not supported (without additional libraries). So I ...
2
votes
1answer
232 views

Partial unique constraint spanning multiple tables in postgres

To enforce partial uniqueness in postgres, it is a well known workaround to create a partial unique index instead of an explicit constraint, like so: CREATE TABLE possession ( possession_id serial ...
0
votes
1answer
126 views

How to perform same DML statements on two different servers (Oracle and SQL-Server) simultaneously

I have two servers, Oracle and SQL-Server. I have same database on both the servers. I want to perform DML (insert,update,delete). How can I perform same DML statements on both the servers ...
2
votes
1answer
282 views

How to include concatenated values in a dynamic pivot column value?

I am extending a dynamic pivot query. The original query works fine. In the second query, instead of displaying the date as a value for the pivot column, I would like to display a concatenated column. ...
8
votes
1answer
477 views

Designing Simple Schema for Disaggregation of Demand Forecast

I am doing a simple database design task as a training exercise where I have to come up with a basic schema design for the following case: I have a parent-child hierarchy of products (example, Raw ...
4
votes
2answers
3k views

“No row was updated error” in SQL 2012 - worked fine in SQL 2005 and 2008

I have a database in SQL Server 2005. We are currently looking at upgrading to SQL Server 2012. I installed SQL Server 2012 in a test environment (Windows Server 2012 virtual machine). Backed up ...
2
votes
2answers
129 views

Slow Performance caused by Correlated Sub-queries & Clustered Index Seek

I'm running a query in which one of the tables (FIELDDATA) has nearly 400,000 records which is taking more than 2 minutes to execute. I ran the execution plan, and noticed that the clustered seek ...
0
votes
1answer
110 views

Query causing Database lock problem (php/Mysql) [closed]

What is the issue with my query? When I execute, it lock the database for 5 to 10 minutes. Please help me to optimize this query. SELECT u.username, u.email, u.created_at, ...
0
votes
2answers
1k views

SQL - Cannot Add Foreign Key Constraint

Can anyone tell me why there are errors such as : Cannot Add Foreign Key Constraint And am i on the right track ? DROP DATABASE technology_university_hospital; CREATE DATABASE ...
2
votes
1answer
49 views

Query to determine start and end dates based on time overlap

Given the following data: id | user_id | started | closed | dead ------------------------------------------------------------------------------------------- 7714 ...
0
votes
0answers
36 views

Update a column in table only if a condition is met for number of values for a field in other table

I am trying to figure out how to achieve the following (This is simplified version that ignores non relevant columns) I have table "Item" with columns item_id business_key I have another table ...
4
votes
2answers
100 views

Cummulative Sum with Reset Value

Consider the following table: ID | GROUP_ID | ORDER_VAL | RESET_VAL | VAL ---+----------+-----------+-----------+----- 1 | 1 | 1 | (null) | 3 2 | 1 | 2 | (null) ...
0
votes
1answer
15 views

SQL BCP Utility Writing to SSMS Insead of .csv File

I have a stored procedure in SSMS call sp_testInventoryIssues as follows: USE [ADMIN] GO /****** Object: StoredProcedure [dbo].[sp_testInventoryIssues] Script Date: 06/19/2015 16:02:29 ******/ ...
0
votes
0answers
25 views

How to Create a Recommended Test Planning in SQL Server

Goal: Make lots of different test for a specific stored procedure named 'sp_test' in order to review if you are retrieving the same data based on data input. Purpose: If you have made lots of ...
-1
votes
1answer
22 views

New to SQL- Delete First and Last Day of Each Month From Data Set [duplicate]

I am extremely new to SQL. I am operating on SQL Server 2012. I am working with an Inventory file that contains the Date the Inventory was taken, item #, and quantity. The first and last day of each ...
26
votes
3answers
29k views

N prefix before string in Transact-SQL query

Would you tell me, please, when should I use N prefix before string in Transact-SQL query? I have started to work with a database where I don't get any results using query like this SELECT * FROM ...
1
vote
2answers
155 views

Build Restore History table

We restore a database daily that we download from an FTP site. I would like to build a history table that tracks when the database is restored on our SQL Server. This is easy. My issue is sometime ...
0
votes
2answers
46 views

Use column alias in GROUP BY

I have a query where I chain two columns. Why does the alias not work in the GROUP BY clause but in ORDER BY clause, it does work? How can I write the select correctly? SELECT KOS_VER_ID AS ...
1
vote
2answers
39 views

Looking for application which will provide to determine project database growth and cost per day or month

I am using SQL Server 2008 for product development Currently application is live with 20 users now if I want to check how my database is growing and how much it will grow in month or year projection ...
1
vote
2answers
88 views

Why is my query returning an unexpected result?

Here are the tables I am using: parts(pid,pname,color) suppliers(sid,sname,address) catalog(sid,pid,cost) I need to find the name of suppliers that supply two different parts with the same ...
1
vote
2answers
136 views

Limiting read access in postgres to few rows

We have a requirement where we want to limit the maximum no. of rows that a select query can return when its done using a particular login. So basically we would like to append a limit clause to any ...
0
votes
2answers
3k views

Optimize IN clause in where query with order by - MySQL

I am trying to optimize a query that using IN clause in WHERE to avoid file sorting. To make it easy , I created the following sample which shows the problem. Here is my query: SELECT * FROM `test` ...
2
votes
3answers
50 views

What schema for different relation from two tables to another?

There are three tables instructors, meeting_points and bookings. Here are the relation I want: 1 instructor has 0, 1 or n meeting_points 1 booking has 1 meeting_point 1 meeting_point can be linked ...