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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GRANT permission to access to respective creator

Does the following command: GRANT SELECT ON EVENT TO STUDENT; grant student access to whole EVENT table? If yes, how to only give STUDENT access to EVENT(s) record created by respective STUDENT?
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1answer
234 views

ORA-00838 error after increasing MEMORY_TARGET

I've increased MEMORY_TARGET in pfile and then create spfile. I'm getting the same problem as before: ORA-00838: Specified value of MEMORY_TARGET is too small, needs to be at least 3084M The ...
0
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1answer
15 views

SQL CHANGE DATE FORMAT IN BULK

I have a database with several hundred fields but my data structure is wrong. It is currently in uk format as follows: d/m/y 01/01/85 01/01/96 23/12/87 What would be the most efficient way to change ...
1
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1answer
419 views

Optimising a query of an SSRS dataset

Consider the query given below: SELECT * FROM ((SELECT c.cust_id , c.username , REPLACE(qs.seg_type_ref_key_02, 'N/A', 'Non Vip') casino_group, ...
10
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1answer
1k views

Generate an exception with a Context

When PostgreSQL throws an exception, there is a line "CONTEXT" like: ERROR: INSERT has more target COLUMNS than expressions LINE 3: ... ...
0
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1answer
203 views

Replication Snapshot folder not cleaning up

The job that I thought was supposed to clean up old snapshots isn't removing the old files. The retention is left at default yet there are snapshots months old which remain. The job runs as the ...
1
vote
1answer
55 views

SQL query to sum a column prior to date and show all entries after that date

I have a database function that sum a column prior to a date and after that date show all entries one by one. that function return the data ordered by a common field and apply the sum by date every ...
0
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0answers
22 views

Postgres count of delimited items in bytea encoded string

How would you get a count for each of $ delimited Individuals in each of the group_names? (Example: SomeGroup has 1, This Is Another Group has 8) thedb=# select group_name,encode(group_data,'escape') ...
0
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1answer
14 views

represent multiple entities to one entity relationship

If suppose, I have following tables: Here, person can own either home or car. person can't own both at a time. If person owns home, then owns field will be equal to 1, if it owns car, owns field ...
2
votes
2answers
68 views

Check if contiguous date interval exists

I have a table in PostgreSQL which describes some events that have a start date and an end date: CREATE TABLE my_table ( event_id serial NOT NULL, start_date timestamp without time zone NOT ...
4
votes
2answers
3k views

PostgreSQL query with max and min date plus associated id per row

I have the following table: CREATE TABLE trans ( id SERIAL PRIMARY KEY, trans_date date, trans_time time ); I want to have the following view CREATE OR REPLACE VIEW daily_trans ...
1
vote
1answer
21 views

Update incoming rows based on % calculation

Below is the business requirement which I have to achieve... As a Sales Data Operations process/product owner, I want to be able to identify share class conversions (aka "wash trades") coded as ...
0
votes
1answer
21 views

MS Access: adding column if not exist (or try/catch it)

this is an easy question, but I can't find out the solution... I have to check if a column exists and add it if the test is negative. How can I do with only sql code? This is the syntax for SQL ...
1
vote
1answer
111 views

Access Value between ranges

I'd like the following population logic built in an Access database: I have two tables. The first, Table1 contains a set of buckets, with a starting and ending value: Start End Bucket ...
2
votes
2answers
677 views

How to insert values in junction table for many to many relationships?

I have three tables in database: trips(trip_id(pk), trip_name(unique), user_id(fk)) places(place_id(pk), place_name(unique)) trips_places_asc(trip_id(fk), place_id(fk)) Since many trips can ...
0
votes
1answer
151 views

How to optimize query

using SQLite3 and the following query, it seems like there should be a better performing way to write this query? Is there? Select Name, Sum(Case When Used Is ...
1
vote
2answers
48 views

Slow Select over View

My simple SELECT statement on a view in Postgres 9.3.1 is pretty slow. The receipts table has 20 million entries and the other one has around 17k. But I still think it should be faster than ~16 ...
1
vote
1answer
37 views

How to edit data to 2 tables using MySQL Workbench

How to edit data in 2 tables using MySQL Workbench (or can I)? I use the below query to get the data but unable to edit it from the table (or Form Editor). SELECT * FROM TABLE1 ...
1
vote
2answers
334 views

After Restore Log_reuse_wait_desc of Replication

I'm wondering if anybody has ran into this issue before and has any suggestions on what's causing it/how to fix it. We are restoring a database into lower Dev environments and after the restore the ...
3
votes
1answer
203 views

MySQL fulltext selection performance

I have 1.5M rows in a table. Following is the table create code: CREATE TABLE `jobs` ( `id` INT(8) NOT NULL AUTO_INCREMENT, `job_id` VARCHAR(50) NOT NULL DEFAULT '', `title` VARCHAR(255) ...
-1
votes
1answer
21 views

How to data transpose in sql view?

Table1 Name CITY RANK Manish New delhi A Akash New delhi A Akash Aligarh B Vinay Barh C I have to transpose like Name New Delhi Aligarh Barh Manish A ...
0
votes
1answer
134 views

SQL Query - Possibly the most poorly written query in the history of mankind

Having a major headache trying to tune this query and looking for help, a programmer who had no idea what they were doing messed with this query and it is currently being used in production and it ...
0
votes
1answer
22 views

Find all tables in a DB with column names that contain that substring?

Say I have these three columns student_id, name, identify in three different tables in the same database. The query should search for column names that contain that substring. i.e. id should return ...
1
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2answers
179 views

MYSQL joining 3 tables with left join

I have these tables: pupils: (id_pupil, name, surname, email, user, pass, level, class) incidents: (id_incidents, date, time, type_incident, comments, id_pupil, id_user, subject, id_trimester) ...
2
votes
1answer
1k views

SQL Server 2008 R2 cluster installation error

I was trying to install SQL Server Cluster (Launch wiard to install single node SQL Server 2008 R2 faliover cluster) .. The setup checks displayed no error and the installation started after all the ...
1
vote
1answer
45 views

Rebuild vs Reorganize [duplicate]

I currently have a maintenance plan that is reorganizing indexes everyday and I would like to know if you reorganize an index everyday would you ever need to rebuild the index? If so, why?
0
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2answers
56 views

SSIS import data or insert data if no match

I have a situation in which I need to import data from one table to another. The challenge here is in tables I have some columns which are references to other table values (kind of foreign key). I ...
1
vote
1answer
561 views

Tree structure hierarchical query sorting

I have the following structure of table. CREATE TABLE table1 ( serial_num integer NOT NULL, parent_num integer, parent_key text, key_ary_num integer[], level integer, rank integer, ...
3
votes
3answers
104 views

How to interpret correlated subqueries?

EDIT: Both answers are great but I think I must clarify my question. NOTE: I must indicate that in the following, by executed, I mean logically. I understand that the actual execution made by the ...
0
votes
1answer
38 views

MySQL - How to replace a given value from multiple columns when using SELECT?

I need to SELECT a set of rows of a given table whose structure looks like - 1º line is the name of columns A01 A02 A03 A04 A05 ... A200 99999 99999 10 753 99999 ...
0
votes
1answer
54 views

MYSQL any way to improve this query's performance?

MYSQL version 5.6.23 CENTOS 7 Hi, I have the following query that is coming from an application that I am hoping to make more efficient from the mysql side of things. I have an index built on ...
3
votes
2answers
2k views

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

I have a database that currently lives in SQL Server 2005. We are currently looking at upgrading to SQL 2012. I installed 2012 in a test environment (Windows Server 2012 virtual machine). Backed ...
0
votes
2answers
95 views

write to SQL server from another server

I have 2 Windows 2012 virtual machines set up in Virtualbox - one called "AppServer" where I'll be installing applications, and another called "DatabaseServer" - where the application databases will ...
0
votes
0answers
34 views

Cannot insert into table

I have created a table called users in my computer by the following method. <table name="users"> </table> Now I am trying to insert a record in it by the following method. ...
1
vote
0answers
30 views

Rolling back a SQL Server 2008R2 Database stored in SQL Server Express [closed]

We had an accident where a bunch of data was deleted from one of our products. The product removed a bunch of lines from various tables about 12 hours ago. There is no good backup and I try to ...
0
votes
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. ...
0
votes
0answers
19 views

Procedure or function 'sp_InsertImages' expects parameter '@Img_path', which was not supplied [migrated]

i have passed img_path in my code nd procedure but it show me error please anyone help me. my procedure is : create proc sp_InsertImages ( @Img_path nvarchar(max), @product_id numeric(18,0), ...
0
votes
0answers
41 views

Database Role Membership: db_executor vs db_datareader and db_datawriter in SQL Server 2008R2?

I have a couple of users who have only public and db_executor memberships in their Server Login object, User Mapping properties in the one database (let's call it A), now that our front end ...
0
votes
0answers
48 views

SQL Server Timesheet Query Performance

I am working on a webapp for timesheet administration. I write a query to group all the time entry of an employee by week. And I also have to use paging. The query is already slow with something like ...
2
votes
1answer
60 views

Log shipping and new NDF file

I have a log shipped database, and I want to create a new NDF file in another disk for moving historic tables to that NDF file. My goal is to free some space in the MDF file because the disk that the ...
2
votes
2answers
55 views

Sampling in PostgreSQL

I am looking for possible ways of random sampling in PostgreSQL. I found a couple of methods to do that with different advantages and disadvantages. The naive way to do that is: select * from ...
2
votes
4answers
3k views

UPDATE … FROM … syntax for iSeries for a MS SQL Server developer

When I wanted to update a table to the values from another table in SQL Server I would use following syntax: UPDATE t1 SET t1.a = t2.a FROM t1 INNER JOIN t2 ON t2.b = t1.b What would be iSeries 7 ...
-5
votes
1answer
32 views

Increment the value of an entire column [closed]

I have a table and one of the columns, is of the data type int. I want to increase every tuple's value of that specific column by 100. I have not found a proper answer for this yet. Anybody?
0
votes
1answer
27 views

GRANT permissions to all tables, views, procedures in SQL Server 2000

I was wondering if there was a fairly efficient way to use T-SQL with SQL Server 2000 syntax to GRANT SELECT, INSERT, UPDATE, DELETE, on all TABLES and VIEWS for a particular database while excluding ...
0
votes
1answer
49 views

Any tips to watch out for when setting one of my databases to Read Only?

Our front end application uses\ pointed to a different database now in SQL Server 2008R2 in the same instance, so to prevent users from accidentally updating data in the old production database, is it ...
0
votes
2answers
114 views

Storing IP addresses - varchar(45) vs varbinary(16)

I am going to create a table with two fields - ID as BIGINT and IPAddress as either varchar(45) or varbinary(16). The idea is to store all unique IP addresses and use a reference ID instead the actual ...
0
votes
0answers
19 views

Best way to run a formula (segment) a large number of users with custom attributes

Here is my question. I have a table that stores a large number of people (80 mil). Each person has a GUID id. Then I have another table (or set of tables) that stores information about people. e.g. ...
1
vote
1answer
146 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. ...
0
votes
2answers
166 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
votes
2answers
578 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.