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Recent questions in Sql
0
votes
1
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What do you mean by query optimization?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-query-optimisation
#sql-query-optimization
#query-optimization
0
votes
1
answer
What is the Subquery in SQL?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-subquery
#subquery-sql
0
votes
2
answers
What is an Index in SQL?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-index
#index-sql
0
votes
1
answer
What is a composite primary key in SQL?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-composite-primary-key
#sql-primary-key
#primary-key-sql
0
votes
1
answer
What is the difference between UNIQUE and PRIMARY KEY constraints?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-unique
#sql-primary-key-constraints
#sql-constraints
0
votes
1
answer
What is a SQL transaction?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-transaction
#transaction-sql
0
votes
1
answer
Define UNION, MINUS, UNION ALL, INTERSECT?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-union
#sql-minus
#sql-union-all
#sql-intersect
0
votes
1
answer
What do you mean by ROWID in SQL?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#rowid-sql
#sql-rowid
0
votes
1
answer
What are the properties of a transaction?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-transaction-properties
#sql-properties
transaction-properties
0
votes
1
answer
Difference between TRUNCATE, DELETE and DROP commands in SQL?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-truncate
sql-drop-
#sql-delete
0
votes
1
answer
What is SQL comments?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-comments
#comments-sql
0
votes
1
answer
Suppose a Student column has two columns, Name and Marks. How to get names and marks of the top three students.
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-columns
0
votes
1
answer
Give the order of SQL SELECT?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-select-order
#order-sql-select
0
votes
1
answer
Can we rename a column in the output of the SQL query?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-query
#query-sql
0
votes
1
answer
Explain DML and DDL in SQL?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-ddl
#sql-dml
#dml-ddl
+1
vote
1
answer
Write a SQL SELECT query that only returns each name only once from a table?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-select
#select-sql
0
votes
1
answer
Which TCP/IP port does SQL Server run?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-tcp-ip-
#sql-servers
#server-sql
0
votes
1
answer
How to select random rows from a table in SQL?
asked
Jul 10, 2020
in
Sql
by
SakshiSharma
#sql-random-rows
#select-random-row-sql
0
votes
2
answers
What is a Trigger in SQL?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-trigger
#trigger-sql
0
votes
1
answer
What is Normalization in SQL?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-normalization
#normalization-sql
0
votes
1
answer
What is identity in SQL?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-identity
#identity-sql
0
votes
1
answer
What is a SQL stored procedure?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-stored-procedure
#stored-procedure-sql
0
votes
1
answer
What are the possible values for the BOOLEAN data field in SQL?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-boolean-data-field
#sql-boolean
0
votes
1
answer
Is it possible for a table to have more than one foreign key in SQL?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#foreign-key
#sql-foreign-key
0
votes
1
answer
What is CHECK Constraint in SQL?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-check-constraint
#check-constraint
0
votes
1
answer
What are Foreign keys in SQL/
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-foreign-keys
#foreign-keys
0
votes
1
answer
What is the SQL Primary key?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-primary-key
#primary-key-sql
0
votes
1
answer
Define COMMIT in SQL statement?
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-commit-statement
#commit-sql
#sql-statements
+1
vote
1
answer
Define the SQL DELETE statement.
asked
Jul 10, 2020
in
Sql
by
Robindeniel
#sql-delete-statement
#delete-sql
0
votes
1
answer
How do you add a column to a table in SQL?
asked
Jul 8, 2020
in
Sql
by
Robindeniel
#sql-add-column-table
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