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Sharon Christine has Published 436 Articles
Sharon Christine
371 Views
Let us first create a table −mysql> create table DemoTable -> ( -> Num1 int, -> Num2 int -> ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(100, 200); Query OK, 1 row affected (0.13 sec) mysql> ... Read More
Sharon Christine
348 Views
Use IS NULL to test for NULL value. Let us first create a table −mysql> create table DemoTable -> ( -> Number1 int, -> Number2 int -> ); Query OK, 0 rows affected (0.62 sec)Insert some records in the table using insert command −mysql> insert into ... Read More
Sharon Christine
419 Views
For this, use UPDATE and REPLACE() in MySQL. Let us first create a table −mysql> create table DemoTable -> ( -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> StudentName varchar(100), -> StudentCountryName varchar(100) -> ); Query OK, 0 rows affected (0.67 sec)Insert some records ... Read More
Sharon Christine
2K+ Views
To set a string with hyphen and numbers, you need to use single quotes. For example, 'Customer-1234-899', 'Customer-9383-901', etc.Let us first create a table −mysql> create table DemoTable -> ( -> CustomerId varchar(100) -> ); Query OK, 0 rows affected (0.70 sec)Insert some records in the table using insert command ... Read More
Sharon Christine
158 Views
Use the SUBSTR() method to extract the middle part of column values surrounded with hyphens, for example, “11-84848-11”.Let us first create a table −mysql> create table DemoTable -> ( -> Number varchar(100), -> Number1 varchar(100) -> ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using ... Read More
Sharon Christine
315 Views
Let us first create a table −mysql> create table DemoTable -> ( -> StudentId varchar(100) -> ); Query OK, 0 rows affected (0.58 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('STU-090'); Query OK, 1 row affected (0.16 sec) mysql> insert ... Read More
Sharon Christine
533 Views
For this, you can use ORDER BY clause. Let us first create a table −mysql> create table DemoTable -> ( -> Num1 int, -> Num2 int -> ); Query OK, 0 rows affected (0.61 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(60, 249); Query ... Read More
Sharon Christine
158 Views
To search for an integer value in a varchar filed, you can use CASE statement.Let us first create a table. Consider, we have a list of email-ids −mysql> create table DemoTable -> ( -> Title varchar(100) -> ); Query OK, 0 rows affected (0.61 sec)Insert some records in the table ... Read More
Sharon Christine
1K+ Views
For this, you can use stored procedure. Let us create a table dynamically with two columns i.e. StudentId as int, whereas StudentName as varchar −mysql> DELIMITER $$ mysql> CREATE PROCEDURE creatingDynamicTableDemo(yourTableName VARCHAR(200)) -> BEGIN -> SET @name = yourTableName; -> SET @st = CONCAT(' ... Read More
Sharon Christine
311 Views
To fetch record by year, use the YEAR() method in MySQL −select *from yourTableName where year(yourColumnName)=yourYearValue;Let us first create a table −mysql> create table DemoTable -> ( -> CustomerName varchar(100), -> ShippingDate datetime -> ); Query OK, 0 rows affected (0.64 sec)Insert some records in the table using insert command ... Read More