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Questions tagged [query]

The tag has no usage guidance.

0
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3answers
33 views

Apache / PHP Begins to Deny SQL Requests after about 2000

We have a web page on our server that we use to run administrative scripts. For example, we might run the script "unenrolStudents()" which runs 5,000 SQL SET commands one after another and sets 5000 ...
2
votes
2answers
158 views

MySQL query times for tuning are different every time

I am tuning SQL query time for my slow query but every time I get different times so I can't evaluate my optimize solution. For example, I run query select * from abc where abc.status in (x,y,z) and ...
1
vote
2answers
75 views

Is it possible to use workbench to connect to a linux server and send the output to a csv or text file?

I have a user that is using workbench to connect to a Linux MySQL Server and would like to have the query results sent straight to a csv or text file on his computer. I know how to do it if I were ...
1
vote
2answers
1k views

Mysql server high trafic makes websites really slow or unable to load

Lately we have been having a lot of problems with our mysql server, from websites being really slow or even unable to load them at all. The server is a dedicated server that only runs our mysql ...
1
vote
2answers
324 views

Mysql crashes by some strange queries

I have some strange log entries in my debug where I see that the mysql crashes: Apr 13 08:51:16 cronjob1 mysqld[22953]: Attempting backtrace. You can use the following information to find out Apr 13 ...
0
votes
2answers
186 views

Is there a way to find out the detailed statistics of the querys that processed by Mysql?

The load average of my service is high, always around 15. And the reason for that is the Mysql is overloaded. I'm wondering How Can I find out which specific query/script consume the most Mysql ...
0
votes
2answers
62 views

MySQL stop responsing when modify main tables

It's an InnoDB database. The query cache has 1.2GB in size with 300k queries in the cache. Most of the cached queries are related to 3 major tables (260MB data length plus 600MB index length ...
0
votes
2answers
325 views

MySQL server has gone away occasionally on simple select query

For many weeks I have had a problem with a simple SQL query where from time to time the MySQL server has crashed. But recently it is crashing every day, 1-2 times a day. The query is very simple: ...
-1
votes
2answers
6k views

SQL Server queries running more than the timeout values set in IIS 7.5 and SQL Server query timeouts

Which time out value does SQL server take into consideration while executing a query or stored procedure? The application timeout is set at 20 minutes. The SQL query/command timeout is set at 10 ...
2
votes
1answer
143 views

how to optimize postgresql81 for a hug query but not a complicated one?

i have a query which execution takes 15s on the server. the server is bi-xeon 5130 (2GHz) with 2GB of RAM and 160GB of scsi hardrive in RAID. Database is PostgreSQL 8.1 on Debian 4 etch. This query ...
1
vote
1answer
69 views

SQL Performance - Convert parameter or column type

I was asked this on an interview, and would like some feedback... I have a stored procedure that takes in a varchar parameter IsActive that is either a "YES" or "NO" string. The stored procedure ...
1
vote
1answer
381 views

PostgreSQL - Using COALESCE keyword in SSIS

When I am trying to use the COALESCE key word in an OLE DB Source control, it always returns a negative number in the results set. I am using a Native OLE DB\PostgreSQL Native Provider as a ...
0
votes
1answer
32 views

Slow SQL Queries over local net

Slow Queries for SQL over 1Gb link between servers using just SSMS Server Configs: Main SQL Node: 32GB Ram 16 cores Sage Evolution Server: 16 cores 16GB ram The config of the servers is that they ...
0
votes
1answer
649 views

Large database table queries return empty set

I'm trying to understand a weird problem with a MySQL database on one of my websites. When I loaded a big set of data from a CSV file (2,200,000 records with a single column, using LOAD DATA) into a ...
0
votes
1answer
631 views

MSSQL query not working, even if there is data

Trying to run a more complex SQL query on an MS SQL server, but I get no data output. Logically should be fine, but I cant see why it doesnt work: SELECT D.NAME DATABASE_NAME,T.NAME TABLE_NAME,I.NAME ...
0
votes
1answer
402 views

Finding list of fonts for each PC

I am trying to find the best way to find a list of clearview fonts on each PC on our domain. Questions: 1.) Should I use SCCM & how? I've create a Query but I am getting nothing right now. I was ...
0
votes
1answer
229 views

Concurrent MySQL processes

I have a file, let's call it a.php, which executes a long cycle of iterations, each one of them makes some queries to the database. To complete the cycle, it takes quite some time (some hours). My ...
0
votes
1answer
56 views

Diagnosing where all the queries are coming from

We have an issue where a site on a shared hosting account is going over the allowed query limit per user; that is set at 100k queries/hr. The site shouldn't be generating that amount of queries TBH ...
0
votes
1answer
94 views

dns hierarchy not returning ip address

(DNS1 ,WWW1, Gateway1) (sub-internal network) (DNS0,WWW0,Gateway0) (internal network) DNS1: 192.168.250.3/24 WWW1: 192.168.250.4/24 Gateway1: 192.168.250.1 /24 (internal) :: 192.168.0.150 ...
0
votes
1answer
161 views

MySQL's Query Optimizer's take on disk access time

I don't have a ton of background with MySQL, and I was wondering of anyone can give me some insight into MySQL's query optimizer and the impact on the cost of disk accesses in determining a query plan ...
0
votes
1answer
257 views

optimize mysql queries perfomance and speed

i need some help in some mysql queries i'm trying to improve it's performance and speed i'm trying to figure out how to do that using mysql syntax . here is an snippet of a query function i use ...
0
votes
1answer
327 views

Simple MySQL query locking up until database restart

I have a very simple query that runs in 216ms on my development machine but was taking more than 45 seconds on my production server, that is, until I restarted MySQL there: UPDATE `forum_categories` ...
0
votes
1answer
356 views

A Most Puzzling MySQL Problem: Queries Sporadically Slow

This is the most puzzling MySQL problem that I've encountered in my career as an administrator. Can anyone with MySQL mastery help me a bit on this?: Right now, I run an application that queries my ...
0
votes
1answer
238 views

CPU/ memory utilization

WE have a job running very slowly. And I required to produce the analysis of CPU/ memory utilization during that backup.Also need statustics around the database performance for that batch job. How to ...
0
votes
1answer
374 views

MS SQL Query Count & Sum

select count(distinct consumerno), sum (case when ccon like '%D%' then 1 else 0 end) as Domestic, sum (case when ccon like '%B%' then 1 else 0 end) as Business from consumer left join contract on ...
0
votes
1answer
863 views

Putting indexes in separate filegroup kills our queries

Can anyone shed some light on this? On our dev boxes, our database resides entirely in the PRIMARY filegroup, and everything works fine. On one of our production servers, recently upgraded from 2005 ...
2
votes
0answers
130 views

WMI Query - First and Fourth IP octet

Is anyone aware of any WMI queries that could be used within group policy which only lists all IP address, which end in .200 and I have multiple sites, multiple networks, I only need to list the ...
2
votes
0answers
183 views

Show or log long queries with values instead placeholders

I have any very long sql query in postgresql. I tried show what postgress do with: select * from pg_stat_activity unfortunately I see something like: select some_fields from anytable1 anytable2 ...
1
vote
0answers
262 views

Pgpool-II would not invalidate query cache for user schemas

I've configured pgpool2 (v3.4.3) with postgresql (v9.5) to cache queries like this: memory_cache_enabled = on memqcache_method = 'shmem' memqcache_total_size = 67108864 memqcache_max_num_cache = ...
1
vote
0answers
104 views

How to create an SSIS package with a Script Component

I am using Microsoft Business Intelligence Development Studio (BIDS) to create an SSIS package. Take into account that is my first attempt with SSIS. I want to take data from a Source database ...
0
votes
0answers
65 views

How store time series data for resample / aggregation / querying data?

I'm looking at options for storing and resampling time series data. Ideally, It would be possible to store time series such as 1-minute samples and then be able to "resample" it. For instance, for ...
0
votes
0answers
59 views

How to make daily database backups readily queryable

We have a production database that generates daily database backups that are uploaded to S3 in form of compressed .sql.bz2 files. We basically have a S3 bucket that has a large number of such backups, ...
0
votes
0answers
486 views

SCCM Status Messages Unable to Retrieve Stored Queries List

After upgrading from SCCM 2012 R2 SP1 to SCCM 1610, we have begun experiencing issues when running status message queries both on the site and components. When attempting to view the status messages, ...
0
votes
0answers
41 views

MySQL execute every query on a second server

I have a Web-application on a Linux Debian 8 Server saving in MySQL. I need a backup which is always the latest version(not even a minute behind) so the only way i could think off to archive this is ...
0
votes
0answers
808 views

LDAP Query Of All Users In Various Groups In A Specific ActiveDirectory OU

I need to configure Atlassian Crowd to query all the users in my AD server that are in various groups in a top-level OU. The DN for the OU is "OU=Atlassian,DC=NNNN,DC=com". The various groups would ...