Structured Query Language (SQL). For questions about the language, not Microsoft SQL Server (tag sql-server).

learn more… | top users | synonyms (2)

-4
votes
0answers
51 views

Query for columns

I need help writing a query. I have a table named "schedule", with columns "start time" and "end time", both with the time data type. Student have today discipline "Networks" from 11:00 (in start ...
0
votes
1answer
44 views

How to declare reserved words as variables in Oracle PL/SQL?

What is the best way to bypass the Oracle SQL reserved-word constraint for PL/SQL value declaration? I realize bind and substitution may be acceptable alternatives for an actual query, but what about ...
0
votes
0answers
30 views

SQL Server Index recomended but already there (DMVs)

I am using the DMV views to get a list of index recommendations and then I am reviewing each of them to make sure they make sense and don't overlap etc. Some examples are Index ON X ( Y ) and Table ...
3
votes
1answer
16 views

Sort table rows and save the row numbers using UPDATE

I have Postgres 9.5 with a table movimientos that has the following data: | id | concepto | movimiento | numero | orden | | 1 | AJUSTE 1 | 2542 | 0 | 2 | | 2 | APERTURA | 12541 ...
0
votes
0answers
17 views

Error with displaying ranges of dates when using pivot table

can i know is there any problem with this codes as when i use datagridview and then te pivot table it sometimes the dates runs whereby sometikmes the dates does not follow in sequence. I not sure ...
1
vote
1answer
18 views

Add variable value in single quoted string. Expand variable within single quotes

I have tried different variations of the below commands but non work. I simply want to run the following command using a variable within the location string: CREATE TABLESPACE data OWNER appuser ...
0
votes
3answers
57 views

How to check if range between two numbers is available in table of ranges

I have following table of number ranges Create table Ranges { Id int identity(1,1) primary key, RangeFrom int not null, RangeTo int not null } Insert into Ranges(RangeFrom, RangeTo) VALUES ...
1
vote
1answer
24 views

Query: How to join on different tables depending on the filled column?

I'm pretty new to the field of SQL, but already solved a lot of problems, so until now i am familiar with the different possibilites of JOIN(s) (explicit and implicit syntax), group by, distinct and ...
5
votes
3answers
361 views

Why set Auto Update Statistics to False?

I've just inherited about 20 instances of SQL Server, as part of a wider acquisition project. I'm in the process of assessing performance and I don't like the way maintenance plans have been ...
1
vote
2answers
82 views

How to get the Sum of all column values in the last row of a resultset without using UNION?

I need to get the sum of all column values of a result set in the last row. Here is my SQL query. SELECT CS_YEAR AS YEAR, CS_MNTH AS MONTH, CS_WK AS WEEK_NO, 'Total' AS ...
1
vote
3answers
63 views

How to find values from one table missing in another?

I am a Junior Developer. I have been asked to create a subquery to solve this problem. If the question is not clear please let me know so I can provide more details. I have two tables - Article and ...
1
vote
1answer
29 views

how do I change regexp_substr(to_char(bar), '^.*?$', 1, 1, 'm') to only read 132 characters each time

how do I change the query below so it only reads and displays 132 characters each line with w(id, line#, line, rest) as ( select id, 1, regexp_substr(to_char(bar), '^.*?$', 1, 1, 'm'), ...
0
votes
1answer
19 views

How do you normalize a table that is indirectly dependent on a has-many relationship?

I currently have the following database design: Product: contains various description attributes Belongs to many ProductSets ProductSet: Has many Products Belongs to many Stores Store: Has ...
0
votes
1answer
37 views

extract values from different stored procedures and create one report

At the company I work, the third party taking care of the database. So there is giant complex stored procedure that produces the result for one parameter only. When management needs a desirable ...
0
votes
1answer
56 views

Slow search by LIKE and other values (1 million rows+)

I'm currently developing a kind of search website where one can search for business companies in my country. The database table has 1 million rows and quite a few colums (42 columns). But I find it ...
5
votes
2answers
67 views

Postgres Update Limit

I'm curious if Postgres has anything in place where I could limit the amount of rows kept for a ID. For example, say I have a users table and login_coordinates table. Every time the user logs in, ...
1
vote
3answers
70 views

T-SQL for Query that can be done in SQL. What do they want?

We are given tables Vendors(VendorId, VendorName, ..) , Invoices(InvoiceId, VendorId...) I am going over a book exercise that asks for a T-SQL statement to find all vendors with at least one invoice. ...
0
votes
0answers
31 views

Service Desk SLA Report

I need assistance with regard to a DBA task. I need to create an SLA report that will show incidents that were resolved after the SLA period which is 4 hours. I am using SQL Server 2014 with a Heat ...
0
votes
0answers
12 views

How to use column result as column name with MySQL [duplicate]

At the moment I have sample table as such doc_name | processed_date | doc_version ---------------------------------------- doc_1 | 2015-01-01 | 1.0 doc_1 | 2015-01-02 | 1.1 doc_1 | ...
0
votes
0answers
24 views

Error connecting from other SQL instance using powershell script

I have a job to run a powershell script that will rebuid fragmented index through source SQL instance to target SQL instance. The poweshell script didn't run due to the following error: Sqlcmd: ...
4
votes
1answer
174 views

Select multiple columns from subquery - Connect by

I have a table which manages folder structure. Hence it has a parent-child relationship. We trigger a query to sum all documents in the complete heirarchy: SELECT folder_name name, ...
1
vote
1answer
15 views

I have a query which does not return result with the desired alias names of columns in PostgreSQL

The following is my query which does not return result with the desired alias column names: with d as (select distinct emp.ahrims_id, rank.name as rank from hr_employee as emp, ana_rank as rank, ...
1
vote
2answers
34 views

Slow query / Indexes creation (PostgreSQL 9.2)

I have the following Query: explain analyze SELECT split_part(full_path, '/', 4)::INT AS account_id, split_part(full_path, '/', 6)::INT AS note_id, split_part(full_path, '/', 9)::TEXT ...
0
votes
1answer
35 views

Get dates between two months

Can I know why am I getting weird output in my SQL statement whereby my table has two dates of the month May but it only appears for one month, the same things I test for dates range it is working. ...
0
votes
0answers
7 views

Python and SQL exception handling when internet cuts out

I have a python temperature monitoring program that runs every 30 seconds on my raspberry pi, and uploads the data to an SQL server. I am using try: and except: however this doesn't handle if the ...
0
votes
2answers
19 views

postgresql - how to find and extract text from a description column

I'm trying to create a new table using data from an existing. I have the following structure: Table "public.def" Column | Type ...
1
vote
1answer
14 views

Is DISTINCTROW in MS-Access the same as selecting all the fields and doing a group by on all of them?

I was looking though some queries in MS Access, and I found an SQL keyword I was unfamilar with called DISTINCTROW, from what I can tell, it's the same as an SQL GROUP BY which includes all the ...
5
votes
3answers
206 views

Selecting one row from each group based on a Varchar field

Given a table Avenger whose data looks like this: id Avenger Type Power 1 Captain America foo 2 2 Captain America bar 3 3 Me foo 5 4 You ...
1
vote
1answer
29 views

Using a join operation with conditionals

I have two tables that I'm working with in my database. I am using SQL Server 2014. One is 'versions', that contains version_id, version_number, start_date, end_date and server_id. The other is ...
2
votes
2answers
44 views

Using Variables to contain column names for SQL Server Merge statemtns

I'm trying to automate the column list grab for a merge job, and running into a bit of a head scratcher. I don't want to have to manually type out all of the column names, and thought I may be able to ...
0
votes
1answer
41 views

Altering column data SQL [closed]

I have a set of car data, one of the columns represents the registration year. I want to change this column to age. As the data is from 2010 I assume that the following statement should calculate the ...
0
votes
1answer
37 views

List of queries run

I'm looking for a DMV query for SQL Server 2008 R2 which shows me all queries (full history) run by a specific user. I have this code for now: SELECT * FROM sys.dm_exec_query_stats qs CROSS APPLY ...
1
vote
1answer
21 views

Display dates not in ascending for To_Char

can i know why and how i can solve the problem whereby if i use To_Char it does not sort the date in ascending. Below is my code select distinct To_Char (attendance_Date, 'dd/mm/yyyy') from ...
2
votes
1answer
34 views

Using SQLCMD with Variables

Im trying to do some general script that i can use to run the same INSERT/UPDATE or DELETE statements on different site databases. This was my first attempt which works just fine, but i have to copy ...
0
votes
1answer
20 views

Get data from previous years dynamically

I have a table with columns id, fname, date_field. date_field's records are: 2011-03-01 2012-03-01 2013-03-01 2014-03-01 2015-03-01 2016-03-01 I want the data for the past 2 years for each record ...
1
vote
1answer
24 views

index creation - Slow Query - PostgreSQL 9.2

I've got the following query: SELECT * FROM ( SELECT split_part(full_path, '/', 4)::INT AS account_id, split_part(full_path, '/', 6)::INT AS note_id, split_part(full_path, '/', 9)::TEXT ...
1
vote
1answer
43 views

Capitalize only the first letter of a name

I have a table Vendors that contains a column VendorContactFname, which is written in lowercase. I want to capitalize only its first letter. I am thinking of concatenating an Upper on the first ...
2
votes
1answer
39 views

Relating 2 tables with possible wildcards?

I am having trouble getting the desired results when trying to relate the following tables. NULL in the following table essentially means that if it is not an exact match with another row then choose ...
1
vote
1answer
33 views

Duplicate key value violates a unique constraint

I've been looking at other posts. It seems many people have had this problem, but I'm somewhat new to Postgres and tried other solutions with no luck. I have ny_stations table: CREATE TABLE ...
1
vote
1answer
28 views

sql getting sum of calculated columns

How can I get the sum of TotalAmount as single value for example Product Name UnitPrice Quantity Discount% Amount SharingCost% ShippingCost CustomsCost TotalAmount pro1 ...
0
votes
1answer
10 views

A different number of AFTER INSERT trigger alarms in SQLite and SQL Server

I have trigger CREATE TRIGGER [Foo] AFTER INSERT ON [Bar] BEGIN UPDATE Log SET count = count + 1; END When i execute query insert into Bar (ColumnName) values ('SomeValue1'), ('SomeValue2'), ...
1
vote
1answer
29 views

Tricky condition for PostgreSQL UPDATE query

I need help with a PostgreSQL query. I have a Django app + pg backend, where users post interesting URLs (or links) and can then comment under such links (called replies). There are two pg tables to ...
0
votes
2answers
32 views

Using Select Statement to get column name and table name from the same table

I have a table containing 2 Columns : Column1 (table_name) and column2 (column_name) like this : (Column 1) (Column 2) |Column_Name | Table_Name | -------------|------------| ...
1
vote
1answer
36 views

Select rows until a condition is met

Given: CREATE TABLE T ( x int not null primary key , y int not null ); INSERT T(x,y) VALUES (1, 0) ,(2, 0) ,(3, 0) ,(4, 0) ,(5, 3) ,(6, 0) ,(7, 4) ,(8, 0) ,(9, 0); The ...
0
votes
1answer
25 views

Display the the result of a substraction in a MySQL query (1 table)

I've made a table that looks like this: stop (table name) -cityName {PK} -schedule {PK} -price -routeNo Basicly the customer wants to know what's the cost difference between 2 different stops by ...
2
votes
2answers
46 views

Select rows where smaller row does not exist

Consider the following table data: ID NAME 1 Kshitiz 2 Aman 5 Aakash 6 Manjeet Here there are records missing between 2 and 5. What query can I use to select row 5 in this table?
0
votes
1answer
27 views

On the fly MySQL balance

Please excuse my English translation that makes by Google Translate I need to solve the following in a MySQL query without php or another language: In the “A” column I have a string value, in ...
0
votes
1answer
36 views

SQL 2012 Availability Group issue - The core cluster resources do not move when we initiate AG fail-over

I have a Windows 2012R2 cluster with two nodes and a File Share quorum. I am running SQL 2012 SP2 and I have configured a test AG with a dummy database. When I fail-over the AG, the Availability ...
0
votes
1answer
13 views

(SQL) User tables are separated into two sections

Using SQL Plus, I create 13 tables via an .sql file, each containing primary and foreign keys. When I execute "select table_name from user_tables;" they are displayed in this partitioned fashion. ...
-1
votes
3answers
58 views

how to find the last date from the week number as input

I need to find the last date of week when i pass year and week number as input in my stored procedure. week starts on monday and last day of week will be friday. Database - IBM db2 9.7 platform - ...