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Found 4378 Articles for MySQL
137 Views
Let us first create a table −mysql> create table DemoTable839( StudentFirstName varchar(100), StudentLastName varchar(100) ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert command −mysql> insert into DemoTable839 values('Chris', 'Brown'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable839 values('', 'Taylor'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable839 values(NULL, 'Taylor'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable839 values('Adam', 'Smith'); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select *from DemoTable839;This will produce the following ... Read More
310 Views
The SELECT(COLNAME) means, we are creating an alias for that column. Let us see an example and create a table −mysql> create table DemoTable865( FirstName varchar(100), LastName varchar(100) ); Query OK, 0 rows affected (0.77 sec)Insert some records in the table using insert command −mysql> insert into DemoTable865 values('Chris', 'Brown'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable865 values('Adam', 'Smith'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable865 values('David', 'Miller'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable865 values('Carol', 'Taylor'); Query OK, 1 row affected (0.15 sec)Display all records ... Read More
382 Views
For this, you can use DATE(). Let us first create a table −mysql> create table DemoTable864(DueDateTime timestamp); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable864 values('2019-01-10 12 −34 −55'); Query OK, 1 row affected (0.26 sec) mysql> insert into DemoTable864 values('2016-12-11 11 −12 −00'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable864 values('2015-04-01 10 −00 −00'); Query OK, 1 row affected (0.28 sec) mysql> insert into DemoTable864 values('2017-05-20 04 −40 −10'); Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement ... Read More
145 Views
For this, use the ENUM data type. Let us first create a table −mysql> create table DemoTable838(Color ENUM('RED','GREEN','BLUE')); Query OK, 0 rows affected (0.67 sec)Insert some records in the table using insert command −mysql> insert into DemoTable838 values('RED'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable838 values('Green'); Query OK, 1 row affected (0.64 sec) mysql> insert into DemoTable838 values('Blue'); Query OK, 1 row affected (0.88 sec)Display all records from the table using select statement −mysql> select *from DemoTable838;This will produce the following output −+-------+ | Color | +-------+ | RED | | GREEN | | BLUE | +-------+ 3 rows in set (0.00 sec)
324 Views
Let us first create a table −mysql> create table DemoTable837(Name varchar(100)); Query OK, 0 rows affected (0.53 sec)Insert some records in the table using insert command −mysql> insert into DemoTable837 values('Chris'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable837 values(''); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable837 values('Robert'); Query OK, 1 row affected (0.08 sec) mysql> insert into DemoTable837 values(''); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable837 values('David'); Query OK, 1 row affected (1.13 sec)Display all records from the table using select statement −mysql> select *from DemoTable837;This will produce ... Read More
272 Views
For fetching records between dates, use BETWEEN. Let us first create a table −mysql> create table DemoTable863(StudentDateOfBirth date); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable863 values('1998-01-10'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable863 values('2000-10-15'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable863 values('2003-04-20'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable863 values('2005-12-31'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable863 values('1999-07-01'); Query OK, 1 row affected (0.27 sec)Display all records from the table using select ... Read More
923 Views
Let us first create a table −mysql> create table DemoTable836(FirstName SET('John', 'Chris', 'Adam')); Query OK, 0 rows affected (0.60 sec)Insert some records in the table using insert command −mysql> insert into DemoTable836 values('John, Chris'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable836 values('John, Chris, Adam'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable836 values('Chris, Adam'); Query OK, 1 row affected (0.25 sec) mysql> insert into DemoTable836 values('John, Adam'); Query OK, 1 row affected (0.37 sec)Display all records from the table using select statement −mysql> select *from DemoTable836;This will produce the following output −+-----------------+ | ... Read More
521 Views
Yes, we can insert values without mentioning the column name using the following syntax −insert into yourTableName values(yourValue1, yourValue2, yourValue3, .....N);Let us first create a table. Here, we have set Id as NOT NULL −mysql> create table DemoTable862( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100) , Age int ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable862 values(NULL, 'Chris', 23); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable862 values(NULL, 'Robert', 21); Query OK, 1 row affected (0.18 sec) mysql> insert into ... Read More
834 Views
Let us first create a table −mysql> create table DemoTable835( CountryCode int, CountryName varchar(100) ); Query OK, 0 rows affected (0.63 sec)Insert some records in the table using insert command −mysql> insert into DemoTable835 values(100, 'US'); Query OK, 1 row affected (0.36 sec) mysql> insert into DemoTable835 values(101, 'UK'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable835 values(102, 'AUS'); Query OK, 1 row affected (0.26 sec) mysql> insert into DemoTable835 values(103, 'ENG'); Query OK, 1 row affected (0.09 sec)Display all records from the table using select statement −mysql> select *from DemoTable835;This will produce the following ... Read More
698 Views
To update only month in date, use MONTH(). Let us first create a table −mysql> create table DemoTable861(AdmissionDate date); Query OK, 0 rows affected (1.22 sec)Insert some records in the table using insert command −mysql> insert into DemoTable861 values('2019-01-21'); Query OK, 1 row affected (0.31 sec) mysql> insert into DemoTable861 values('2018-01-01'); Query OK, 1 row affected (0.49 sec) mysql> insert into DemoTable861 values('2016-01-02'); Query OK, 1 row affected (1.27 sec) mysql> insert into DemoTable861 values('2018-01-14'); Query OK, 1 row affected (0.47 sec)Display all records from the table using select statement −mysql> select *from DemoTable861;This will produce the following output −+---------------+ ... Read More