For this, use FIND_IN_SET().Let us create a table −Examplemysql> create table demo81    -> (    -> id int not null auto_increment primary key,    -> username varchar(200)    -> ); Query OK, 0 rows affected (1.44Insert some records into the table with the help of insert command −Examplemysql> insert into demo81(username) values('John, Chris, David'); Query OK, 1 row affected (0.11 mysql> insert into demo81(username) values('Mike, Sam'); Query OK, 1 row affected (0.14 mysql> insert into demo81(username) values('Chris, Bob, Sam'); Query OK, 1 row affected (0.13 mysql> insert into demo81(username) values('Mike, John, Chris'); Query OK, 1 row ... Read More

For this, use DATE_FORMAT() in MySQL. The syntax is as follows −Exampleselect date_format(yourColumnName, '%d-%m-%Y') as anyAliasName from yourTableName;Let us create a table −Examplemysql> create table demo80    -> (    -> due_date date    -> ); Query OK, 0 rows affected (0.74Insert some records into the table with the help of insert command −Examplemysql> insert into demo80 values('2020-04-30'); Query OK, 1 row affected (0.14 mysql> insert into demo80 values('2016-01-10'); Query OK, 1 row affected (0.17 mysql> insert into demo80 values('2018-03-21'); Query OK, 1 row affected (0.12Display records from the table using select statement −Examplemysql> select *from demo80;This will ... Read More

For this, you can use substring_index() in MySQL. Let us create a table −Examplemysql> create table demo79    -> (    -> fullname varchar(50)    -> ); Query OK, 0 rows affected (0.64Insert some records into the table with the help of insert command −Examplemysql> insert into demo79 values("John, Smith"); Query OK, 1 row affected (0.09 mysql> insert into demo79 values("David, Miller"); Query OK, 1 row affected (0.11 mysql> insert into demo79 values("Chris, Brown"); Query OK, 1 row affected (0.07Display records from the table using select statement −Examplemysql> select *from demo79;This will produce the following output −Output+--------------+ | ... Read More

To get username using ID from two tables, you need to use JOIN and join the tables.Let us create a table −Examplemysql> create table demo77    -> (    -> userid int not null primary key,    -> username varchar(20)    -> ); Query OK, 0 rows affected (2.63Insert some records into the table with the help of insert command −Examplemysql> insert into demo77 values(1, 'John'); Query OK, 1 row affected (0.19 mysql> insert into demo77 values(2, 'Bob'); Query OK, 1 row affected (0.36Display records from the table using select statement −Examplemysql> select *from demo77;This will produce the following ... Read More

To find all users with unique last name, use GROUP BY HAVING COUNT().Let us create a table −Examplemysql> create table demo76    -> (    -> firstName varchar(20),    -> lastName varchar(20)    -> ); Query OK, 0 rows affected (9.29Insert some records into the table with the help of insert command −Examplemysql> insert into demo76 values('John', 'Doe'); Query OK, 1 row affected (2.52 mysql> insert into demo76 values('David', 'Smith'); Query OK, 1 row affected (6.31 mysql> insert into demo76 values('Adam', 'Smith'); Query OK, 1 row affected (1.52Display records from the table using select statement −Examplemysql> select *from ... Read More

For this, yYou can use from_unixtime() along with now().Let us create a table with some data type −Examplemysql> create table demo75    -> (    -> due_date int(11)    -> ); Query OK, 0 rows affected, 1 warning (2.87Insert some records into the table with the help of insert command −Examplemysql> insert into demo75 values(unix_timestamp("2020-01-10")); Query OK, 1 row affected (0.46 mysql> insert into demo75 values(unix_timestamp("2020-11-19")); Query OK, 1 row affected (0.59 mysql> insert into demo75 values(unix_timestamp("2020-12-18")); Query OK, 1 row affected (0.44 mysql> insert into demo75 values(unix_timestamp("2020-11-10")); Query OK, 1 row affected (0.70Display records from the ... Read More

To implement LIKE query with dynamic array, the syntax is as follows −Exampleselect *from yourTableName    where yourColumnName2 like "%yourValue%"    order by yourColumnName1 asc    limit yourLimitValue;Let us create a table −Examplemysql> create table demo74    -> (    -> user_id int not null auto_increment primary key,    -> user_names varchar(250)    -> )    -> ; Query OK, 0 rows affected (0.67Insert some records into the table with the help of insert command −Examplemysql> insert into demo74(user_names) values("John Smith1, John Smith2, John Smith3"); Query OK, 1 row affected (0.18 mysql> insert into demo74(user_names) values("John Smith1"); Query OK, ... Read More

To select all records with specific numbers, use the FIND_IN_SET() in MySQL.Let us create a table −Examplemysql> create table demo73    -> (    -> interest_id varchar(100),    -> interest_name varchar(100)    -> ); Query OK, 0 rows affected (1.48Insert some records into the table with the help of insert command −Examplemysql> insert into demo73 values("100, 101, 103, 105", "SSC"); Query OK, 1 row affected (0.34 mysql> insert into demo73 values("105, 103, 1005, 1003, 104", "Computer"); Query OK, 1 row affected (0.10 mysql> insert into demo73 values("110, 105, 104, 111", "Novel"); Query OK, 1 row affected (0.31Display records ... Read More

To convert, use str_to_date() in MySQLLet us create a table and add date records −Examplemysql> create table demo72    -> (    -> due_date varchar(40)    -> ); Query OK, 0 rows affected (2.96 sec)Insert some records into the table with the help of insert command −Examplemysql> insert into demo72 values("11/15"); Query OK, 1 row affected (0.26 sec) mysql> insert into demo72 values("02/20"); Query OK, 1 row affected (0.09 sec) mysql> insert into demo72 values("07/95"); Query OK, 1 row affected (0.15 sec)Display records from the table using select statement −Examplemysql> select *from demo72;This will produce the following output ... Read More

Problem: A COBOL-DB2 program is changed to increase the length of a variable from PIC X(5) to PIC X(8). However, there are no changes in the SQL of the program. What will be the result if the program's plan/package is not binded for these changes?SolutionThe variable length change from PIC X(5) to PIC X(8) is not a DB2 change and there are no modifications required for SQL statements in the program. However, still we need to BIND its PLAN/PACKAGE else we will get SQL error code -818 which states that “THE PRECOMPILER-GENERATED TIMESTAMP x IN THE LOAD MODULE IS DIFFERENT ... Read More