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MySQL Articles
Page 268 of 355
How to add some days to str_to_date() MySQL function?
You can use DATE_ADD() function from MySQL. Let us first create a table −mysql> create table DemoTable -> ( -> ShippingDate varchar(100) -> ); Query OK, 0 rows affected (0.67 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('06-01-2019'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('01-04-2017'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('29-06-2019'); Query OK, 1 row affected (0.47 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+--------------+ | ShippingDate | +--------------+ | 06-01-2019 | ...
Read MoreMySQL query to replace a string after the last / in a column with directory links?
For this, use the substring_index() method. Let us first create a table −mysql> create table DemoTable -> ( -> FolderName varchar(100), -> FolderLocation varchar(200) -> ); Query OK, 0 rows affected (1.03 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('CProgram', 'C:/AllPrograms/.....'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('Images', 'E:/MyImage/home/garbage'); Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+------------+-------------------------+ | FolderName | FolderLocation | +------------+-------------------------+ | CProgram | C:/AllPrograms/..... ...
Read MoreHow to show GRANTS for root in MySQL?
For this, use the following syntax, wherein we have used SHOW GRANTS −SHOW GRANTS FOR 'yourUserName'@'yourHostName';HostName may be ‘%’ or localhost.Let us implement the above syntax in order to show grants from ROOT −mysql> SHOW GRANTS FOR 'root'@'%' ;Output+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Grants for root@% ...
Read MoreSelect dates between current date and 3 months from the current date in MySQL?
Use BETWEEN and INTERVAL to achieve this. Let us first create a table −mysql> create table DemoTable -> ( -> AdmissionDate date -> ); Query OK, 0 rows affected (0.84 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2019-09-30'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('2019-10-01'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('2019-03-30'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values('2019-04-24'); Query OK, 1 row affected (0.17 sec)Display all records from the table using select ...
Read MoreUpdate multiple columns of a single row MySQL?
Let us first create a table −mysql> create table DemoTable -> ( -> FirstName varchar(100), -> Age int, -> Score int -> ); Query OK, 0 rows affected (0.62 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Robert', 21, 78); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values('Bob', 20, 90); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values('Sam', 22, 69); Query OK, 1 row affected (0.20 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+-----------+------+-------+ | ...
Read MoreGROUP BY and display only non-empty column values in MySQL
Let us first create a table −mysql> create table DemoTable -> ( -> Id varchar(100), -> Message varchar(200) -> ); Query OK, 0 rows affected (1.17 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('1', ''); Query OK, 1 row affected (0.23 sec) mysql> insert into DemoTable values('1', 'Hi'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values('2', 'Hello'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('3', 'Awesome'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values('3', ...
Read MoreGetting the maximum value from a varchar field in MySQL
Use MAX() function along with SUBSTRING() for this. Let us first create a table −mysql> create table DemoTable -> ( -> Id varchar(200) -> ); Query OK, 0 rows affected (0.52 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2019-0515-1980'); Query OK, 1 row affected (0.49 sec) mysql> insert into DemoTable values('2019-0516-780'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('2019-0517-2780'); Query OK, 1 row affected (0.16 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+----------------+ | Id ...
Read MoreMySQL query to get the count of values and display the count in a new column ordered in descending order
Use ORDER BY with DESC to order in descending order. For counting the values, use the COUNT(). For example, if the name “John” appears thrice in the column, then a separate column will display the count 3 and in this way all the count values will be arranged in descending order using the ORDER BY DESC.Let us first create a table −mysql> create table DemoTable -> ( -> EmployeeName varchar(100) -> ); Query OK, 0 rows affected (0.85 sec)Insert some records in the table using insert command −mysql> insert into DemoTable ...
Read MoreHow to place a thousand separator in MySQL records?
Use the FORMAT() method for this. Let us first create a table −mysql> create table DemoTable -> ( -> Amount DECIMAL(10, 2) -> ); Query OK, 0 rows affected (0.45 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(84848757.60); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(95868685.50); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(4242342.36); Query OK, 1 row affected (0.21 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+-------------+ | Amount | +-------------+ | 84848757.60 ...
Read MoreHow can I find the percentage of my users whose birth date is between 1980 and 1996 in MySQL?
Let us first create a table −mysql> create table DemoTable -> ( -> DateOfBirth varchar(100) -> ); Query OK, 0 rows affected (0.55 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('2019/01/31'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values('1980/02/01'); Query OK, 1 row affected (0.25 sec) mysql> insert into DemoTable values('1985/04/10'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('1995/06/04'); Query OK, 1 row affected (0.28 sec) mysql> insert into DemoTable values('1990/12/24'); Query OK, 1 row affected (0.18 sec) ...
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