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Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(20), LastName varchar(20) ); Query OK, 0 rows affected (0.53 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(FirstName, LastName) values('John', 'Smith'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable(FirstName, LastName) values('David', 'Miller'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(FirstName, LastName) values('John', 'Doe'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable(FirstName, LastName) values('Chris', 'Brown'); Query OK, 1 row affected (0.15 sec)Display all records from ... Read More
Let us first create a table −mysql> create table DemoTable ( Value int ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(80); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(90); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(90); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(80); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(100); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(90); Query OK, 1 row affected ... Read More
Since we want the sum of last 3 digits, we need to use aggregate function SUM() along with RIGHT(). Let us first create a table −mysql> create table DemoTable ( Code int ); Query OK, 0 rows affected (0.77 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(5464322); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values(90884); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(23455644); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values(4353633); Query OK, 1 row affected (0.11 sec)Display all records from ... Read More
Here, let’s say you have a string with form “StringSeparatorNumber” form like John/56989. Now if you want to remove the number after separator /, then use the SUBSTRING_INDEX(). Let us first create a table −mysql> create table DemoTable ( StudentName varchar(100) ); Query OK, 0 rows affected (1.05 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('John/56989'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('Carol'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values('David/74674'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable values('Bob/45565'); Query ... Read More
For thus, use MySQL REPLACE(). Let us first create a table −mysql> create table DemoTable ( FolderLocation text ); Query OK, 0 rows affected (0.80 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('C/ProgramFiles/AllMySQLProgram'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('C/ProgramFiles/JavaChatApplication'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('C/ProgramFiles/Main/Image.png'); Query OK, 1 row affected (0.18 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output −+------------------------------------+ | FolderLocation ... Read More
Yes, we can check for a blank string and 0 in a single condition. Let us first create a table −mysql> create table DemoTable ( ClientId varchar(40) ); Query OK, 0 rows affected (1.01 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('CLI-01'); Query OK, 1 row affected (0.36 sec) mysql> insert into DemoTable values('0'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('CLI-02'); Query OK, 1 row affected (0.31 sec) mysql> insert into DemoTable values('CLI-00'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(''); Query OK, 1 ... Read More
To collapse rows into a comma-delimited list, use GROUP_CONCAT(). Let us first create a table −mysql> create table DemoTable ( Id int, Name varchar(40) ); Query OK, 0 rows affected (0.52 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(100, 'Chris Brown'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values(101, 'Adam Smith'); Query OK, 1 row affected (0.84 sec) mysql> insert into DemoTable values(101, 'John Doe'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(100, 'David Miller'); Query OK, 1 row affected (0.17 sec) mysql> insert ... Read More
In MySQL, you can achieve sp_help with the help of SHOW CREATE command.CASE 1 −For table, the syntax is as follows −SHOW CREATE TABLE yourTableName;CASE 2 −For stored procedure, the syntax is as follows −SHOW CREATE PROCEDURE yourProcedureName;Let us first create a table −mysql> create table DemoTable ( EmployeeId int NOT NULL AUTO_INCREMENT, EmployeeFirstName varchar(40) NOT NULL, EmployeeLastName varchar(40) NOT NULL, EmployeeAge int, EmployeeCountryName varchar(40), EmployeeCityName varchar(40), PRIMARY KEY(EmployeeId), UNIQUE KEY(EmployeeFirstName, EmployeeCityName) ); Query OK, 0 rows affected (0.97 sec)Let us implement the above syntax for our table −mysql> SHOW CREATE TABLE ... Read More
For this, you can use SUBSTRING_INDEX(). Let us first create a table −mysql> create table DemoTable ( Words TEXT ); Query OK, 0 rows affected (1.62 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Learn With Ease'); Query OK, 1 row affected (0.32 sec) mysql> insert into DemoTable values('Intro To MySQL'); Query OK, 1 row affected (0.35 sec) mysql> insert into DemoTable values('Deep Dive Using Java'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('C++ In Depth'); Query OK, 1 row affected (0.16 sec)Display all records from the table using select ... Read More
Let us first create a table −mysql> create table DemoTable ( ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(40), ClientAge int, ClientCountryName varchar(40) ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(ClientName, ClientAge, ClientCountryName) values('Chris', 25, 'US'); Query OK, 1 row affected (0.33 sec) mysql> insert into DemoTable(ClientName, ClientAge, ClientCountryName) values('Bob', 55, 'UK'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable(ClientName, ClientAge, ClientCountryName) values('David', 45, 'AUS'); Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement ... Read More