StackOverflow Questions for Tag: exists

Randy Minder

Reputation: 48522

SQL Server IN vs. EXISTS Performance

sql-serversql-server-2005existsquery-performancesql-in

Score: 147

Answers: 11

Andrej K

Reputation: 2050

T-SQL use EXISTS as Column

sql-servert-sqlexists

Score: 13

Answers: 3

kahhengchong

Reputation: 27

Group IDs from one table, then count groups having different values in another table

sqlpostgresqljoinexistshaving

Score: 2

Answers: 5

Need Help

Reputation: 1

Stored Procedure that returns duplicate rows with different IDs

sqlsql-serverleft-joinunionexists

Score: 0

Answers: 0

John Darvill

Reputation: 1313

SQL Server: IF EXISTS massively slowing down a query

sqlsql-serversql-server-2012query-optimizationexists

Score: 12

Answers: 7

iDev

Reputation: 2433

Check if an environment variable is set in Perl

perlexists

Score: 5

Answers: 2

Jim Wartnick

Reputation: 2206

Why does INSERT as SELECT with NOT EXISTS cause a unique violation?

sqlpostgresqlexists

Score: 2

Answers: 1

Linda Keating

Reputation: 2435

Mysql How to only select from a column if the column exists

mysqlselectif-statementexists

Score: 11

Answers: 4

Cliff

Reputation: 1

SQL - IN operator still working even if the field is not existing in the table being compared on. how is this possible?

sqloracle-databaseexistsin-operator

Score: -1

Answers: 1

Nacho

Reputation: 2057

CodeIgniter query builder syntax for WHERE EXISTS (subquery)

phpmysqlcodeignitersubqueryexists

Score: 2

Answers: 4

MSE

Reputation: 73

Save unique submission values to a database table and return the ids for each value using CodeIgniter

phpcodeignitersql-insertexistssubmission

Score: 0

Answers: 2

dlaksmi

Reputation: 385

How select query from record count more than 2 with custom column (Option) in MS Access

sqlms-accesssql-order-byexists

Score: 1

Answers: 2

dlaksmi

Reputation: 385

How select query from record count more than 2 in MS Access

sqlms-accesssql-order-byexists

Score: 1

Answers: 1

Fan Chen

Reputation: 1

SQL Exists Clause Join Key Selection

sqlpostgresqljoinexists

Score: -1

Answers: 2

Invincible

Reputation: 1460

Cakephp 3: How to ignore beforefind for specific queries?

phpentitycakephp-3.0exists

Score: 1

Answers: 2

Igor Ostapiuk

Reputation: 619

Laravel check property exist

laravelpropertiesexists

Score: 8

Answers: 6

sdgfsdh

Reputation: 37121

In R, how can I check for the existence of a function in an unloaded package?

rpackageexists

Score: 6

Answers: 6

Garry_G

Reputation: 309

Using a table name as a variable with IF EXISTS

sql-serverazuremergeexecexists

Score: 0

Answers: 0

Mahsun Işık

Reputation: 29

How to delete folders created older than last 7 days with C#?

c#directoryexists

Score: -1

Answers: 4

Matt

Reputation: 2843

Oracle sql return true if exists question

sqloracle-databaseif-statementexists

Score: 24

Answers: 6

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