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If I have a data.frame df <- data.frame(a = c(1, 2, 3), b = c(4, 5, 6), c(7, 8, 9))...
asked
Jun 15, 2023
in
R Basics
by
john ganales
data-frame
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1
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Why do I need an index in a database?
asked
Jun 15, 2023
in
Sql
by
Robin
index-database
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What is an index?
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Jun 15, 2023
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Sql
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Robin
sqlindex
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What are local and global variables and their differences?
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Jun 15, 2023
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Sql
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Robin
globalvariables
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votes
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What is a Cursor?
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Jun 15, 2023
in
Sql
by
Robin
cursor
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What is BCP utility in SQL SERVER?
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Jun 15, 2023
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Sql
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Robin
bcputility
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votes
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What are the different types of replication supported by SQL SERVER?
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Jun 15, 2023
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Sql
by
Robin
sql-replication
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What is the purpose of Replication?
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Jun 15, 2023
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Sql
by
Robin
replication-sql
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votes
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What is DBCC?
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Jun 15, 2023
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Sql
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Robin
dbcc
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How can you raise custom errors from stored procedure?
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Jun 15, 2023
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Sql
by
Robin
storedprocedure
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What is the difference between Stored Procedure (SP) and User Defined Function (UDF)?
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Jun 15, 2023
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Sql
by
Robin
userdefinedfunction
udf
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What is SQL injection?
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Jun 15, 2023
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Sql
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Robin
sql
injection
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if we have multiple AFTER Triggers on table how can we define the sequence od the triggers?
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Jun 15, 2023
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Sql
by
Robin
aftertriggers
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votes
1
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What are the different types of triggers in SQl SERVER?
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Jun 15, 2023
in
Sql
by
Robin
sql-triggers
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What is the difference between UNION and UNION ALL SQL syntax?
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Jun 15, 2023
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Sql
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Robin
unionallsql
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What are the different ways of moving data between databases in SQL Server?
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Jun 15, 2023
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Sql
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Robin
databasessqlserver
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What is LOCK escalation?
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Jun 15, 2023
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Sql
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Robin
lockescalation
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Can we suggest locking hints to SQL SERVER?
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Jun 15, 2023
in
Sql
by
Robin
sql
lock
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votes
1
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What are the different locks in SQL SERVER?
asked
Jun 15, 2023
in
Sql
by
Robin
sql-locks
sql-server
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What are different transaction levels in SQL SERVER?
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Jun 15, 2023
in
Sql
by
Robin
sqlserver
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votes
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If locking is not implemented, what issues can occur?
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Jun 15, 2023
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Sql
by
Robin
table-lock
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What is the difference between DELETE TABLE and TRUNCATE TABLE commands?
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Jun 15, 2023
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Sql
by
Robin
delete-table
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Difference between char varchar and nvarchar in sql server
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Jun 13, 2023
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Sql
by
rahuljain1
nvarchar
sqlserver
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votes
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What is RAID and how does it work?
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Jun 13, 2023
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Sql
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rahuljain1
raid
sql
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What is fill factor ? or When does page split occurs?
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Jun 13, 2023
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Sql
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rahuljain1
fillfactor
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What is DTS?
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Jun 13, 2023
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Sql
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rahuljain1
dts
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What are fact tables and dimension tables in OLAP?
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Jun 13, 2023
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Sql
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rahuljain1
olapdimensiontables
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1
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What are levels in dimensions?
asked
Jun 13, 2023
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Sql
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rahuljain1
dimensions-level
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What are dimensions in OLAP?
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Jun 13, 2023
in
Sql
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rahuljain1
olap-dimension
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What is a measure in OLAP?
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Jun 13, 2023
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Sql
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rahuljain1
olap
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