StackOverflow Questions for Tag: query-optimization

MariaT
MariaT

Reputation: 53

SQL Function with multiple CASE WHEN in the WHERE clause - slow performance

Score: 0

Views: 65

Answers: 4

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Xocas17
Xocas17

Reputation: 1

Simple query with PostgreSQL Planner underestimating rows

Score: -1

Views: 41

Answers: 0

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Leonardo
Leonardo

Reputation: 11387

Query Plan for different parameter length

Score: -3

Views: 47

Answers: 1

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Coskun Ozogul
Coskun Ozogul

Reputation: 2469

Stored procedure takes too long to execute after a few weeks

Score: 0

Views: 70

Answers: 1

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Novitzky
Novitzky

Reputation: 4876

Counting DISTINCT over multiple columns

Score: 348

Views: 784400

Answers: 20

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Kimi
Kimi

Reputation: 3

Optimize/Shorten SQL Queries

Score: 0

Views: 77

Answers: 1

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Ram
Ram

Reputation: 570

Why is MIN($column) doing an Index scan instead of seeking to min value?

Score: 1

Views: 107

Answers: 1

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rein
rein

Reputation: 33445

I need a slow query on AdventureWorks (SQL 2005)

Score: 7

Views: 7484

Answers: 3

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epan
epan

Reputation: 87

Why is my C# ASP.NET Core Web API taking inconsistent response times (10-30 seconds) for stored procedure calls?

Score: -2

Views: 58

Answers: 0

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Komol Chandra Devnath
Komol Chandra Devnath

Reputation: 29

MongoDB Aggregation Pipeline Performance Optimization for Latest User Tracking (4M+ Records)

Score: 0

Views: 32

Answers: 0

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Dams
Dams

Reputation: 47

Optimize MySQL select query without any filter

Score: 0

Views: 70

Answers: 1

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user15539024
user15539024

Reputation: 49

classic asp site run very slow on IIS server 10

Score: 0

Views: 1200

Answers: 2

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spikeeee
spikeeee

Reputation: 21

Reason for 6x perfomance increase in data fetch when caching disabled?

Score: 2

Views: 134

Answers: 2

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Fabian Schmied
Fabian Schmied

Reputation: 4154

Why does a WHERE IN query on a uniqueidentifer column result in a "range seek" (greater than/less than)?

Score: 3

Views: 72

Answers: 1

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harkirat1892
harkirat1892

Reputation: 463

Should I create 2 tables: first for usernames and passwords, and other for user information like dob, name, etc?

Score: 0

Views: 2081

Answers: 4

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user28757434
user28757434

Reputation: 1

Creating unique primary key and storing as int or bigint

Score: -1

Views: 27

Answers: 0

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Bbrk24
Bbrk24

Reputation: 919

Why does adding a small (or even zero) `OFFSET` in Cockroach slow down a query so much?

Score: 1

Views: 61

Answers: 0

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Huluti
Huluti

Reputation: 61

Slow query for count on last 30 days method between two large tables

Score: 0

Views: 51

Answers: 1

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MM.
MM.

Reputation: 57

MAX in subquery causes index scan

Score: 1

Views: 72

Answers: 1

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JollyRoger
JollyRoger

Reputation: 53

SQL Error [1114] [HY000]: The table '/rdsdbdata/tmp/#sql161_17a011_a' is full

Score: 1

Views: 6094

Answers: 4

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