- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Found 6702 Articles for Database
![Arjun Thakur](https://www.tutorialspoint.com/assets/profiles/13574/profile/60_74441-1560315595.jpg)
158 Views
You can use backward slash followed by G i.e. \G instead of semicolon(;). The syntax is as follows to display database names vertically in MySQL command lineSHOW DATABASES \GTo display all database names vertically, you need to use \G. The query is as followsmysql> show databases\GThe following is the output*************************** 1. row *************************** Database: business *************************** 2. row *************************** Database: database1 *************************** 3. row *************************** Database: databasesample *************************** 4. row *************************** Database: education *************************** 5. row *************************** Database: hello *************************** 6. row *************************** Database: information_schema *************************** 7. row *************************** Database: javadatabase2 *************************** 8. row *************************** Database: javasampledatabase *************************** 9. row ... Read More
![Ankith Reddy](https://www.tutorialspoint.com/assets/profiles/22328/profile/60_142162-1519038074.jpg)
2K+ Views
You can use backward slash followed by G i.e. \G instead of semicolon(;). The syntax is as follows to show records vertically in MySQL command line.SELECT *FROM yourTableName\GTo understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table showRecordsVertically -> ( -> Id int, -> Name varchar(100), -> Age int -> ); Query OK, 0 rows affected (2.10 sec)Insert some records in the table using insert command. The query is as followsmysql> insert into showRecordsVertically ... Read More
![George John](https://www.tutorialspoint.com/assets/profiles/13511/profile/60_58410-1512537824.png)
105 Views
You can use field() function with ORDER BY clause to sort by order of values. The syntax is as followsSELECT *FROM yourTableName WHERE yourColumnName IN(Value1, Value2, Value3, .......N); ORDER BY FIELD(yourColumnName ,Value1, Value2, Value3, .......N);To understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table SelectInDemo -> ( -> StudentId int, -> StudentName varchar(100), -> StudentAge int -> ); Query OK, 0 rows affected (1.04 sec)Insert records in the table using insert command. The query is as followsmysql> insert into SelectInDemo values(1, 'Mike', 23); Query ... Read More
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
12K+ Views
The DDL stands for Data Definition Language. To generate the table DDL via query, you can use show create command.The syntax is as followsSHOW CREATE TABLE yourTableName;The above syntax is MySQL specific. Suppose, we have a table with the name ‘DDLOfTableStudent’.First, create a table with the name ‘DDLOfTableStudent’. The query to create a table is as followsmysql> create table DDLOfTableStudent -> ( -> StudentId int, -> StudentFirstName varchar(100), -> StudentLastName varchar(100), -> StudentAddress varchar(200), -> StudentAge int, -> StudentMarks ... Read More
![Arjun Thakur](https://www.tutorialspoint.com/assets/profiles/13574/profile/60_74441-1560315595.jpg)
4K+ Views
to know if MySQL binary log is enabled through SQL command, you can use show variables command.The syntax is as followsshow variables like ‘yourPatternValue’;In place of ‘yourPatternValue’, you can use log_bin to check the binary log is enabled using SQL command show.The query is as followsmysql> show variables like 'log_bin';The following is the output that displays whether it is enabled or not+---------------+-------+ | Variable_name | Value | +---------------+-------+ | log_bin | ON | +---------------+-------+ 1 row in set (0.03 sec)
![Ankith Reddy](https://www.tutorialspoint.com/assets/profiles/22328/profile/60_142162-1519038074.jpg)
754 Views
Here is a stored procedure that takes one parameter for input (IN) and second parameter for output (OUT)mysql> delimiter // mysql> create procedure Sp_SQRT(IN Number1 INT, OUT Number2 FLOAT) -> Begin -> set Number2=sqrt(Number1); -> end; -> // Query OK, 0 rows affected (0.24 sec) mysql> delimiter ;Call the stored procedure and send the value to the user variable. The syntax is as followsCALL yourStoredProcedureName(anyIntegerValue, @anyVariableName);Check what value is stored in the variable @anyVariableName. The syntax is as followsSELECT @anyVariableName;Created the stored procedure with the name ‘Sp_SQRT’. The ... Read More
![George John](https://www.tutorialspoint.com/assets/profiles/13511/profile/60_58410-1512537824.png)
2K+ Views
The int is the synonym of integer in MySQL 5.0. Here is the demo display both int and integer internally represents int(11).Creating a table with int datatypemysql> create table IntDemo -> ( -> Id int -> ); Query OK, 0 rows affected (1.04 sec)Here is description of the table. The query is as followsmysql> desc IntDemo;The following is the output+-------+---------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------+---------+------+-----+---------+-------+ | Id | int(11) | YES | | NULL | | +-------+---------+------+-----+---------+-------+ 1 row in ... Read More
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
404 Views
You can use substring_index() function from MySQL to split the left part of a string. The syntax is as follows −SELECT yourColumnName1, .....N, SUBSTRING_INDEX(yourColumnName, ’yourSeperatorSymbol’, 1) as anyVariableName from yourTableName;The value 1 indicates that you can get left part of string. To check the above syntax, let us create a table. The query to create a table is as follows −mysql> create table LeftStringDemo -> ( -> Id int, -> Words varchar(100) -> ); Query OK, 0 rows affected (0.92 sec)Insert some records in the table using insert ... Read More
![Vrundesha Joshi](https://www.tutorialspoint.com/assets/profiles/13566/profile/60_88163-1512715024.jpg)
61 Views
To order by a field and list the NULL values first, you need to use the following syntax. This will order in descending order −select yourColumnName from yourTableName group by yourColumnName is null desc, yourColumnName desc;To understand the above syntax, let us first create a table −mysql> create table OrderByNullFirstDemo −> ( −> StudentId int −> ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table with the help of insert command. The query is as follows −mysql> insert into OrderByNullFirstDemo values(100); Query OK, 1 row affected (0.13 sec) mysql> insert into OrderByNullFirstDemo ... Read More
![Anvi Jain](https://www.tutorialspoint.com/assets/profiles/13591/profile/60_98631-1512716973.jpg)
933 Views
To select timestamp data range, use the below syntax −SELECT *FROM yourTableName where yourDataTimeField >= anyDateRange and yourDataTimeField < anyDateRangeTo understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create table DateRange −> ( −> DueTime timestamp −> ); Query OK, 0 rows affected (1.34 sec)Insert some records in the table using insert command. The query is as follows −mysql> insert into DateRange values('2016-11-13'); Query OK, 1 row affected (0.51 sec) mysql> insert into DateRange values('2016-10-14'); Query OK, 1 row ... Read More