AmitDiwan has Published 10740 Articles

How to find missing value between two MySQL Tables?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 08:12:45

648 Views

To find missing value between two MySQL tables, use NOT IN. Let us first create a table −mysql> create table DemoTable1(Value int); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1 values(1); Query OK, 1 row affected (0.15 sec) mysql> ... Read More

MySQL query to insert data from another table merged with constants?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 08:05:59

245 Views

Let us first create a table −mysql> create table DemoTable1(Name varchar(100)); Query OK, 0 rows affected (0.83 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1 values('John'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable1 values('Chris'); Query OK, 1 row affected (0.10 sec) ... Read More

Working with MySQL WHERE.. OR query with multiple OR usage. Is there an alternative?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 08:02:28

185 Views

Yes, an alternative for MySQL “WHERE.. OR” is using REGEXP.Let us first create a table −mysql> create table DemoTable684(EmployeeInformation text); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable684 values('John 21 Google'); Query OK, 1 row affected (0.15 sec) mysql> ... Read More

How to write a MySQL query to select first 10 records?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:44:50

1K+ Views

To select first 10 records, we can first order the records in ascending or descending order. With that, use LIMIT 10 to get only 10 records −select *from (select *from yourTableName ORDER BY yourColumnName ASC LIMIT 10)anyAliasName ORDER BY yourColumnName DESC;Let us first create a table −mysql> create table DemoTable683(Page ... Read More

Use NOT IN, OR and IS NULL in the same MySQL query to display filtered records

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:41:36

130 Views

Let us first create a table −mysql> create table DemoTable793(    StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    StudentName varchar(100) ); Query OK, 0 rows affected (0.81 sec)Insert some records in the table using insert command −mysql> insert into DemoTable793(StudentName) values('Adam'); Query OK, 1 row affected (0.14 sec) mysql> ... Read More

Concatenate string with numbers in MySQL?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:34:42

1K+ Views

To concatenate string with numbers, use the CONCAT() method. Let us first create a table −mysql> create table DemoTable682(    Name varchar(100),    Age int ); Query OK, 0 rows affected (0.49 sec)Insert some records in the table using insert command −mysql> insert into DemoTable682 values('John', 23); Query OK, 1 ... Read More

Select the date records between two dates in MySQL

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:31:39

2K+ Views

To select the date records between two dates, you need to use the BETWEEN keyword. Let us first create a table −mysql> create table DemoTable681(AdmissionDate datetime); Query OK, 0 rows affected (0.75 sec)Insert some records in the table using insert command −mysql> insert into DemoTable681 values('2019-01-21'); Query OK, 1 row ... Read More

How to order return duplicate column values only once in MySQL?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:24:03

165 Views

To return a column value only once in MySQL, let us first see an example and create a table −mysql> create table DemoTable680(Status varchar(100)); Query OK, 0 rows affected (0.75 sec)Insert some records in the table using insert command −mysql> insert into DemoTable680 values('Busy'); Query OK, 1 row affected (0.36 ... Read More

How to order records and fetch some using MySQL LIMIT?

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:16:39

133 Views

Let us first create a table −mysql> create table DemoTable679(FirstName varchar(100)); Query OK, 0 rows affected (0.44 sec)Insert some records in the table using insert command −mysql> insert into DemoTable679 values('John'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable679 values('Chris'); Query OK, 1 row affected (0.11 sec) ... Read More

Order by date set with varchar type in MySQL

AmitDiwan

AmitDiwan

Updated on 26-Aug-2019 07:13:10

581 Views

For this, use ORDER BY STR_TO_DATE in MySQL as in the below syntax −select *from yourTableName ORDER BY STR_TO_DATE(yourColumnName, '%M %Y') DESC;Let us first create a table −mysql> create table DemoTable678(DueDate varchar(200)); Query OK, 0 rows affected (0.62 sec)Insert some records in the table using insert command. We have inserted ... Read More

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