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Let’s say we have some columns in the table, one for image path and another for the upvotes. However, the first column is the auto increment Id as shown below −mysql> create table DemoTable( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, ImagePath varchar(100), UpvoteValue int ); Query OK, 0 rows affected (0.72 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(ImagePath, UpvoteValue) values('Image1.jpeg', 90); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable(ImagePath, UpvoteValue) values('Image2.jpeg', 10); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable(ImagePath, UpvoteValue) values('Image3.jpeg', 120); Query OK, 1 ... Read More
Yes, we can replace all the digits of column values to zero except the first digit. Let us first see an example and create a table −mysql> create table DemoTable744 (Number varchar(100)); Query OK, 0 rows affected (0.47 sec)Insert some records in the table using insert command −mysql> insert into DemoTable744 values('537737736252'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable744 values('989000099999'); Query OK, 1 row affected (0.24 sec) mysql> insert into DemoTable744 values('343225666666664533'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable744 values('4322111899494'); Query OK, 1 row affected (0.15 sec)Display all records from the table ... Read More
Given with an array of size n x n and the task is to print the matrix elements of integer type diagonally downwards.Diagonally downwards means printing the array of any size of n x n in diagonally moving downward like in the figure given below −Firstly it will print 1 and then move to 2 print it and moves down to 4 diagonally and print it and so on.ExampleInput: Matrix [3][3] = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }} Output: 1 2 4 3 5 7 6 8 ... Read More
To keep only first two characters and delete rest of the characters, use SUBSTRING().Let us first create a table −mysql> create table DemoTable743 (SubjectName varchar(100)); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable743 values('MySQL'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable743 values('Java'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable743 values('MongoDB'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable743 values('Python'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable743 values('Data Structure'); Query OK, 1 row affected (0.68 ... Read More
Let us first create a table −mysql> create table DemoTable742 (Value varchar(100)); Query OK, 0 rows affected (2.91 sec)Insert some records in the table using insert command −mysql> insert into DemoTable742 values('632535MIT'); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable742 values('US%UK'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable742 values('56%78'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable742 values('%_1234'); Query OK, 1 row affected (0.09 sec)Display all records from the table using select statement −mysql> select *from DemoTable742;This will produce the following output -+-----------+ | Value | ... Read More
Let us first create a table −mysql> create table DemoTable741 (Number int); Query OK, 0 rows affected (0.61 sec)Insert some records in the table using insert command −mysql> insert into DemoTable741 values(70); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable741 values(55); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable741 values(89); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable741 values(79); Query OK, 1 row affected (0.35 sec) mysql> insert into DemoTable741 values(34); Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement −mysql> select *from DemoTable741;This will ... Read More
Use LIKE to find records with double quotes. Following is the syntax −select *from yourTableName where yourColumnName LIKE '%"%';Let us first create a table −mysql> create table DemoTable740 (Value varchar(100)); Query OK, 0 rows affected (0.49 sec)Insert some records in the table using insert command −mysql> insert into DemoTable740 values("\""); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable740 values("\"John"); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable740 values("Sam"); Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −mysql> select *from DemoTable740;This will produce the following output -+-------+ | ... Read More
Let us first create a table −mysql> create table DemoTable739 (Price int); Query OK, 0 rows affected (0.65 sec)Insert some records in the table using insert command −mysql> insert into DemoTable739 values(100); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable739 values(50); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable739 values(1200); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable739 values(500); Query OK, 1 row affected (0.37 sec) mysql> insert into DemoTable739 values(800); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> select *from DemoTable739;This will ... Read More
Let us first create a table −mysql> create table DemoTable(EmployeeCode varchar(100)); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('EMPLOYEE:100 John Smith'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values('EMPLOYEE:16537 Chris Brown'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values('EMPLOYEE:100 David Miller'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values('EMPLOYEE:100 23432 David Miller'); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql>; select *from DemoTable;This will produce the following output ... Read More
To find strings containing a-z, A-Z and 0-9, use BINARY REGEXP along with AND operator.Let us first create a table −mysql> create table DemoTable738 (UserId varchar(100)); Query OK, 0 rows affected (0.81 sec)Insert some records in the table using insert command −mysql> insert into DemoTable738 values('John'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable738 values('sAm456'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable738 values('98Carol'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable738 values('67david'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable738 values('69MIKE'); Query OK, 1 row affected (0.18 ... Read More