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Database Articles
Page 421 of 547
Is there a way to select a value which matches partially in MySQL?
To match partially, use LIKE operator. Let us first create a table −mysql> create table DemoTable806( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100), StudentSubject varchar(100) ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert into DemoTable806(StudentName, StudentSubject) values('Chris', 'Java in Depth With Data Structure'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable806(StudentName, StudentSubject) values('Robert', 'Introduction to MySQL'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable806(StudentName, StudentSubject) values('Bob', 'C++ in Depth With Data Structure And Algorithm'); Query OK, 1 row affected ...
Read MoreHow to split the datetime column into date and time and compare individually in MySQL?
Let us first create a table −mysql> create table DemoTable805(LoginDate datetime); Query OK, 0 rows affected (0.63 sec)Insert some records in the table using insert command −mysql> insert into DemoTable805 values('2019-01-31 12:45:20'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable805 values('2017-11-01 10:20:30'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable805 values('2016-03-12 04:10:00'); Query OK, 1 row affected (0.35 sec) mysql> insert into DemoTable805 values('2018-12-24 05:01:00'); Query OK, 1 row affected (0.13 sec)Display all records from the table using select statement −mysql> select *from DemoTable805;This will produce the following output −+---------------------+ | LoginDate ...
Read MoreMySQL query to find alternative records from a table
To find alternative records from a table, you need to use the OR condition as in the below syntax −select *from yourTableName where yourColumnName=yourValue1 OR yourColumnName=yourValue2…...N;Let us first create a table −mysql> create table DemoTable772 ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(100), Age int ); Query OK, 0 rows affected (0.76 sec)Insert some records in the table using insert command −mysql> insert into DemoTable772(Name, Age) values('Chris', 21); Query OK, 1 row affected (0.28 sec) mysql> insert into DemoTable772(Name, Age) values('Robert', 26); Query OK, 1 row affected (0.19 sec) ...
Read MoreMySQL query to find the date records wherein the current date and time is in between the JoiningDate and RelievingDate
Use BETWEEN to find the date and time between joining and relieving date. NOW() is used to get the current date and time for comparison.Let us first create a table −mysql> create table DemoTable771 ( Joiningdate datetime, Relievingdate datetime ); Query OK, 0 rows affected (1.15 sec)Insert some records in the table using insert command −mysql> insert into DemoTable771 values('2016-01-21', '2016-09-23'); Query OK, 1 row affected (0.27 sec) mysql> insert into DemoTable771 values('2019-01-21', '2019-09-23'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable771 values('2017-04-01', '2018-12-31'); Query OK, 1 row affected (0.20 sec) ...
Read MoreUpdating only a single column value in MySQL?
Let us first create a table −mysql> create table DemoTable770 ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Value int ); Query OK, 0 rows affected (0.65 sec)Insert some records in the table using insert command −mysql> insert into DemoTable770(Value) values(10); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable770(Value) values(90); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable770(Value) values(160); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable770(Value) values(450); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable770(Value) values(560); Query OK, 1 row affected ...
Read MoreHow to set country code to column values with phone numbers in MySQL?
To set country code to phone numbers would mean to concatenate. You can use CONCAT() for this.Let us first create a table −mysql> create table DemoTable769 (MobileNumber varchar(100)); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable769 values('8799432434'); Query OK, 1 row affected (0.24 sec) mysql> insert into DemoTable769 values('9899996778'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable769 values('7890908989'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable769 values('9090898987'); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> ...
Read MoreMySQL query to convert a single digit number to two-digit
For this, you can use LPAD() and pad a value on the left.Let us first create a table −mysql> create table DemoTable767 (Value varchar(100)); Query OK, 0 rows affected (1.40 sec)Insert some records in the table using insert command −mysql> insert into DemoTable767 values('4'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable767 values('5'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable767 values('6'); Query OK, 1 row affected (0.39 sec) mysql> insert into DemoTable767 values('1'); Query OK, 1 row affected (0.10 sec)Display all records from the table using select statement −mysql> select *from DemoTable767;This will ...
Read MoreAdd a character in the end to column values with MySQL SELECT?
For this, you need to perform concatenation using CONCAT().Let us first create a table −mysql> create table DemoTable766 (Name varchar(100)); Query OK, 0 rows affected (0.65 sec)Insert some records in the table using insert command −mysql> insert into DemoTable766 values('John'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable766 values('Sam'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable766 values('Carol'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable766 values('David'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable766 values('Bob'); Query OK, 1 row affected (0.12 sec)Display all records from the table ...
Read MoreHow to display highest value from a string with numbers set as varchar in MySQL?
For this, you need to cast the varchar value to INTEGER.Let us first create a table −mysql> create table DemoTable765 (ItemPrice varchar(200)); Query OK, 0 rows affected (0.52 sec)Insert some records in the table using insert command −mysql> insert into DemoTable765 values('567.00'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable765 values('1089.00'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable765 values('540.00'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable765 values('788.00'); Query OK, 1 row affected (0.39 sec)Display all records from the table using select statement −mysql> select *from DemoTable765;This will produce the ...
Read MoreHow to concatenate columns based on corresponding duplicate id values in MySQL? Display the duplicate values in the same column separated by slash
For this, you can use GROUP_CONCAT().Let us first create a table −mysql> create table DemoTable764 ( ProductId int, ProductPrice int ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable764 values(101, 10000); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable764 values(102, 1090); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable764 values(103, 4000); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable764 values(102, 3450); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable764 values(101, 20000); Query OK, 1 row ...
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