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

learn more… | top users | synonyms (2)

3
votes
2answers
9k views

SET DATEFORMAT problems

I have some doubts about SET DATEFORMAT command. 1)Does this command is only used for inserting and updating date format and it does not effect the date format of that column? OR does this effect my ...
4
votes
1answer
105 views

Counting repeated occurences for a group of fields

I am trying to count the continuous repeated value for a field in order to obtain the maximum repeated occurrences for each person in the table. eg: Time person Result 08:12:36 ...
1
vote
1answer
3k views

Select into existing table where ID is in another table [closed]

I have one table containing ~35k IDs (TableC), one table that features multiple columns (TableA), amongst others the ID from the before mentioned table and a third empty table, featuring the same ...
0
votes
0answers
126 views

Unique Constraint exception after dropping constraint

We had dropped a unique constraint using the ALTER TABLE DROP CONSTRAINT script, but it is still throwing the Unique Constraint exception while trying to insert. We drilled this down to two possible ...
0
votes
1answer
28 views

Copy every entry from TableA to TableB where the ID is in a textfile containing a list of IDs

I have a text file (or an xls) with a 35k lines, each containing a single ID. I'm required to copy every entry of TableA to TableB where the ID is in said list. Would it be best if I'd create a new ...
0
votes
1answer
56 views

How to get Location name from Hierarchical data in Mysql

I have table Location like this: ID, PID, Location 1 NuLL Country 2 1 City 3 2 County 4 3 District 5 4 Social How can I make a view in MySQL that ...
0
votes
1answer
47 views

How to filter specific entries from a MySql table

I have a MySql table and it has following values. Table name results. Reg.No SubjectCode Attempt Pass/Fail 112108 CMIS 1113 1 fail 112110 CMIS 1114 1 ...
0
votes
2answers
56 views

Update all data in a table without affecting ID(PK)

I'm using SQL Server 2005. I have a table with 4846 customer records. The PK is called ID and spans from record 40003 to 79870. This numbers are used a other tables to hold info about user orders, ...
8
votes
2answers
560 views

Do agile software development approaches apply to SQL?

I would like to learn if agile software development methods/principles/patterns are valid to SQL programming as well. If yes, where would be a good place to start learning about that? Are there any ...
0
votes
0answers
21 views

Convert date time [duplicate]

I have a column with about 100 records in datetime (for example 2004-08-09 12:20:41:000) and I would like to convert all records or update same time just date only with format mm-dd-yyyy or ...
1
vote
2answers
101 views

Convert date and time

I have a column with about 100 records in datetime (for example 2004-08-09 12:20:41:000) and I would like to convert all records or update same time just date only with format mm-dd-yyyy. Thank you. ...
0
votes
1answer
503 views

Database structure for users, events and event lists

I am creating a web service for managing events. The service will have users, who are listed in one database, called Users. It will also have events, which are listed in another database, called ...
0
votes
0answers
35 views

remote access between 2 projects

I want to make a database program/project with visual basic. I will make 2 programs. In the first program, a basic user-admin will add, make, delete, edit records on database/s. In the second ...
0
votes
0answers
40 views

Create Temporary Index for bulk operation and Delete after its completed

I am moving bulk data to archive tables. Some times query returns up to 4.5million records, which takes about 2:15 minutes for a table of 40 columns. I want too increase the performance for the ...
4
votes
4answers
42k views

SQL Server CREATE FILE encountered operating system error 5 (Access is denied.)

I'm trying to execute the following script in SQL Server Management Studio but I'm getting the error: Msg 5123, Level 16, State 1, Line 2 CREATE FILE encountered operating system error 5 ...
1
vote
1answer
104 views

What would be most elegant way to replicate data contents periodically into a MySQL table?

I need to parse contents from an API route and insert into a MySQL database. The aim of parsing contents is to replicate the data from the API to my database table. I need to check API response every ...
2
votes
1answer
475 views

How does Oracle 10g use indexes?

I have table called result: CREATE TABLE result (id_graduate NUMBER NOT NULL, id_sml NUMBER NOT NULL, last_update DATE NOT ...
6
votes
1answer
267 views

What is the difference between <> All and Not In

Could you please tell me the differences between select CustomerId from Customer Where TerritoryId <> All(select TerritoryId from Salesperson) select CustomerId from Customer where TerritoryId ...
3
votes
1answer
271 views

How can I create notification on user's connecting to database?

I have users that have access to several databases. I used to have an alert and notification sent to me when a specific user connects to a specific database, but I accidentally clobbered it. Now I ...
1
vote
0answers
24 views

CHKDB is marked RESTORING

I am seeing this in my Microsoft SQL Server 2008 R2 (SP1) database log: The database 'CHKDB_dbname' is marked RESTORING and is in a state that does not allow recovery to be run. This occurred ...
1
vote
1answer
179 views

Offsite Log Shipping

We currently use CDC to replicated our Production DB offsite (Microsoft SQL Server 2008 R2), but using CDC and the way we process the files is very unstable. Also note that the two servers cannot ...
0
votes
1answer
39 views

Help improving this query using IN

Have a look at this query. Is there anyway of making the IN-statement a JOIN instead? Yes, I'm quite new to this. Thanks in advance for any help. SELECT * FROM company AS t1, employee AS t2 WHERE ...
1
vote
1answer
324 views

How to remove object from json array?

My table: CREATE TABLE items ( id BIGINT PRIMARY KEY NOT NULL, name VARCHAR, images json ); images format: [ { "id": "owner", "full": "<url>", "thumb": ...
3
votes
3answers
179 views

How to optimize a log process in MySQL?

In my project, I have about 100.000 users and can't control their behavior. Now, what I would like to do is log their activity in a certain task. Every activity, is one record which includes columns ...
0
votes
1answer
272 views

Need some advice creating this complex view

I need to create a view or query in MySQL to obtain if product has one or more product_detail. This are the create sentences for tables: CREATE TABLE IF NOT EXISTS `stock` ( `product` INT NOT NULL, ...
1
vote
2answers
410 views

Mysql fulltext index search returning weird result

I have ingredient table. I want all those recipes which have certain ingredients. Below is my table structure. Table(ingredient) - Applied fulltext index on ingredient column. ...
1
vote
2answers
2k views

How to calculate the cumulative difference between rows in Postgres?

I am in need of calculating the difference from the cumulative values for the previous day in Postgres based on session_id. Example as mentioned below: Date session_id upload_usage ...
3
votes
2answers
161 views

Changing metadata changes query output issue [duplicate]

Recently stumbled across the following problem: changing metadata changes query output. Here is how to get it. CREATE TABLE [dbo].[prod] ( [ID] [tinyint] NOT NULL, [values] [tinyint] NOT NULL ) GO ...
-2
votes
1answer
25k views

How to get MAX and MIN in GROUP BY query?

In a simple query SELECT col1, col2, col3 FROM table1 GROUP BY col1 each row includes the first value of col2 and col3 for each unique value of col. How to select MAX and MIN for each value of ...
2
votes
3answers
3k views

Return total number of rows and selected (aggregated) data

I have a function which is selecting some data from a table. I would like to return the selected data and the total number of rows in that table. How can I do that or how can I get the same result in ...
3
votes
2answers
2k views

DB2 UPDATE TRIGGER

I am trying to create a trigger in a DB2 database that runs on the update of a column in one table, and then fills in another table with certain values. For example, there is a power unit table with ...
5
votes
6answers
11k views

Select rows with same id but null and some other value in another column for that id

I want to get only rows having a value NULL and some other value than NULL for a particular username column. If both rows have null for that particular username or both have some values other than ...
0
votes
1answer
323 views

PostgreSQL - retrieving max primary key column to insert a new row - any alternatives?

We are using a software that needs to request the max primary key column value to add a new row into the table that was requested. I know that there are some alternatives like: Sequences, and GUIDs ...
0
votes
1answer
182 views

Fulltext search not working properly

I have pers table and applied combine fulltext index on (prenom, nom) fields. Below are data in that table. persID prenom nom (pers table) -------------------------------- 116 te te ...
0
votes
1answer
46 views

Filter and then sort products by availability

I have table with products. Each product can be avaible in 1+ suppliers, so product can be present multiple times. products - id_productSupplier (primary key) - id_product (foreign key) - ...
0
votes
0answers
244 views

Query on a SQL Server view with openquery to Hive returning wrong answer

I have a view in a SQL Server instance which is running an OPENQUERY to Hive through MS OLE DB Provider. The view is getting all the records from the Hive table without any WHERE clause. Now, I ...
0
votes
2answers
2k views

How to import DB with .sql extension into SQL Server 2012?

I have a database with .sql extension which is exported from server using putty. How to import this into SQL Server 2012 in Management Studio? It is not accepting .sql as database, throwing error. ...
1
vote
4answers
74 views

Setting Select Permission on 100+ tables in a database

I got the 'Select permission denied' error for some of my tables in a database. In MS SQL Server 2012, setting Select Permission on 1 table is easy. I just right click on the table > Properties ...
4
votes
1answer
15k views

Invalid use of a side-effecting operator 'INSERT' within a function - Multiple Inserts in Function

If this is not the right forum please let me know and move it for me. I've just got a bunch of inserts like this toward the end of my scalar function: INSERT INTO [Raptor].[dbo].[UserRole] ...
0
votes
0answers
103 views

Slow query on large table after new column is added

I have a table with more than 30 million records, and I recently added a new column with type text. ALTER TABLE database.b ADD COLUMN x TEXT; CREATE INDEX CONCURRENTLY idx_x on database.b(a, x); ...
1
vote
1answer
96 views

How to find missing data from one table that is a join of 2 other tables

I have 2 tables, stock and location, with a third table that records the level of stock at each location, stock_loc_info. Each stock item should have a record for each location. What SQL query ...
0
votes
1answer
129 views

Dynamic Pivot with overlapping years [duplicate]

I have looked and cannot find how to show the last # months in a pivot table. Everything I seem to run across codes months statically. I'm seeking a solution that shows something similar to the ...
1
vote
1answer
521 views

2 Date Ranges - How many days from one range excluding weekends overlap

First - Thanks for your help. I'm looking to create a query in SQL that provides the me the # of days from one date range that overlap another date range and excludes weekends. Example Data: ...
0
votes
4answers
294 views

Single SQL query to retrieve data in a particular order (not ASC/DESC)

I have a MySQL table, let's say called reviews review_id, product_id, language_id, rating, review, author language_id ranges from 1 to 10 for 10 different languages. Let's say I determine that my ...
1
vote
0answers
68 views

Non clustered indexes

I have a questions on Index Our Application is throwing the following SQL eroor Index 'INDEXNAME' on table 'dbo.TABLENAME' (specified in the FROM clause) does not exist. Error: Unknown Error ...
0
votes
1answer
61 views

convert update field second to time

I have 2 fields ( about 1000 records) name FROMTIME and TOTIME. Both fields will have time in seconds (for example FROMTIME = 20520 and TOTIME = 39360). I would like to convert and update these ...
1
vote
0answers
37 views

Did I Properly Diagnose That It's Not A SQL Server Issue?

We have a job that populates about 450,000 rows nightly in an update/insert job via a stored proc nightly. The .Net app pulls in data from a noSQL DB via an API call then pushes it out via a stored ...
0
votes
0answers
204 views

How to tell which process in SQL Server I should kill?

I am having an issue with an application as it is running supper slow. I don't know if it is a database issue or something else as the is nothing that I can find to be the issue. I tried select * ...
0
votes
1answer
3k views

Max from 2 columns with priority date col then the seq col Oracle

I have a column xdate, column seqnumber, personID I want 1 record per personID, where it is the most recent xdate max(xdate) if there is multiple same max xdates i want it to look then for the max ...
1
vote
2answers
76 views

Can an EXISTS clause be improved when the condition is checked for the same value multiple times?

Assume that I'm modelling a Blog engine. Blogs have n Posts. Each User can be granted a role on different Blogs (Admin, Approver or Editor stored as enums/ints). Each Post can have a State (Draft, ...