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Found 4219 Articles for MySQLi
1K+ Views
Let us first create a −mysql> create table DemoTable1510 -> ( -> Value varchar(50) -> ); Query OK, 0 rows affected (6.75 sec)Insert some records in the table using insert −mysql> insert into DemoTable1510 values('20, 35'); Query OK, 1 row affected (0.57 sec) mysql> insert into DemoTable1510 values('45, 67, 89'); Query OK, 1 row affected (0.99 sec) mysql> insert into DemoTable1510 values('90, 97, 101, 190'); Query OK, 1 row affected (1.15 sec)Display all records from the table using select −mysql> select * from DemoTable1510;This will produce the following output −+---------------+ | Value | ... Read More
1K+ Views
You can use LEFT() from MySQL. Let us first create a −mysql> create table DemoTable1428 -> ( -> EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> EmployeeName varchar(20) -> ); Query OK, 0 rows affected (1.05 sec)Insert some records in the table using insert −mysql> insert into DemoTable1428(EmployeeName) values('Chris Brown'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1428(EmployeeName) values('Bob Brown'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable1428(EmployeeName) values('John Smith'); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable1428(EmployeeName) values('David Miller'); Query OK, 1 row affected (0.18 sec) ... Read More
400 Views
For this, you can use subquery. Let us first create a −mysql> create table DemoTable1427 -> ( -> StudentId int, -> StudentMarks int -> ); Query OK, 0 rows affected (1.28 sec)Insert some records in the table using insert −mysql> insert into DemoTable1427 values(201, 89); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1427 values(201, 99); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable1427 values(210, 98); Query OK, 1 row affected (0.16 sec)Display all records from the table using select −mysql> select * from DemoTable1427 ;This will produce the following output ... Read More
544 Views
In Microsoft Access, you can use TOP instead of LIMIT. Let us first create a −Insert some records in the table using insert command −Following is the query to simulate the LIMIT MySQL clause with an Access database −After clicking Run, you will get the desired output −In MySQL, to get top 5 values, you need to use LIMIT 5 −
54 Views
For this, you can use ORDER BY RAND() with LIMIT. Let us first create a −mysql> create table DemoTable1426 -> ( -> FirstName varchar(20) -> ); Query OK, 0 rows affected (0.59 sec)Insert some records in the table using insert −mysql> insert into DemoTable1426 values('John'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable1426 values('Adam'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable1426 values('Robert'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1426 values('David'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1426 values('Sam'); Query OK, 1 row ... Read More
137 Views
Yes, you can use aggregate function COUNT(*) along with GROUP BY clause. Let us first create a −mysql> create table DemoTable1425 -> ( -> JoiningYear int -> ); Query OK, 0 rows affected (0.76 sec)Insert some records in the table using insert −mysql> insert into DemoTable1425 values(2000); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable1425 values(2010); Query OK, 1 row affected (0.24 sec) mysql> insert into DemoTable1425 values(2015); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1425 values(2000); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable1425 values(2010); Query OK, ... Read More
223 Views
For this, use CONCAT() along with SUBSTRING_INDEX(). Let us first create a −mysql> create table DemoTable1424 -> ( -> Value varchar(60) -> ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert −mysql> insert into DemoTable1424 values('567.78483733'); Query OK, 1 row affected (0.78 sec) mysql> insert into DemoTable1424 values('1023.45252443'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable1424 values('7893322.5635543434'); Query OK, 1 row affected (0.35 sec) mysql> insert into DemoTable1424 values('90944.665665'); Query OK, 1 row affected (0.14 sec)Display all records from the table using select −mysql> select * from DemoTable1424;This ... Read More
2K+ Views
Use FIND_IN_SET() instead of MySQL IN(). Let us first create a −mysql> create table DemoTable1423 -> ( -> CountryName varchar(100) -> ); Query OK, 0 rows affected (0.51 sec)Insert some records in the table using insert −mysql> insert into DemoTable1423 values('AUS, UK'); Query OK, 1 row affected (0.08 sec) mysql> insert into DemoTable1423 values('US'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable1423 values('AUS, UK, US'); Query OK, 1 row affected (0.13 sec)Display all records from the table using select −mysql> select * from DemoTable1423;This will produce the following output −+-------------+ | CountryName | +-------------+ ... Read More
608 Views
To select all data between range of two dates, use MySQL BETWEEN −select * from yourTableName where yourColumnName between yourDateValue1 and yourDateValue2;Let us first create a −mysql> create table DemoTable1422 -> ( -> EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> EmployeeName varchar(20), -> EmployeeJoiningDate date -> ); Query OK, 0 rows affected (0.69 sec)Insert some records in the table using insert −mysql> insert into DemoTable1422(EmployeeName, EmployeeJoiningDate) values('John', '2017-09-28'); Query OK, 1 row affected (0.39 sec) mysql> insert into DemoTable1422(EmployeeName, EmployeeJoiningDate) values('Chris', '2019-09-29'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable1422(EmployeeName, EmployeeJoiningDate) ... Read More
614 Views
To set conditions, use MySQL CASE statement. Let us first create a −mysql> create table DemoTable1481 -> ( -> PlayerScore int -> ); Query OK, 0 rows affected (0.42 sec)Insert some records in the table using insert −mysql> insert into DemoTable1481 values(454); Query OK, 1 row affected (0.41 sec) mysql> insert into DemoTable1481 values(765); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable1481 values(890); Query OK, 1 row affected (0.09 sec)Display all records from the table using select −mysql> select * from DemoTable1481;This will produce the following output −+-------------+ | PlayerScore | +-------------+ | ... Read More