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George John has Published 1080 Articles
George John
186 Views
You can use field() function with ORDER BY clause to sort by order of values. The syntax is as followsSELECT *FROM yourTableName WHERE yourColumnName IN(Value1, Value2, Value3, .......N); ORDER BY FIELD(yourColumnName ,Value1, Value2, Value3, .......N);To understand the above syntax, let us create a table. The query to create a table ... Read More
George John
14K+ Views
To return a value from stored procedure, you need to use user defined session specific variable. Add @ symbol before variable name.For example, use @symbol for variable valido. The syntax for the same is as follows:SELECT @valido;Whenever you use select statement, you need to use @anyVariableName. The syntax is as ... Read More
George John
2K+ Views
The MySQL delimiter occurs when you are using a pipe delimiter(|) with semicolon (;) and using MySQL version lower than 8.0.12.MySQL treats the pipe (|) as one delimiter and semicolon (;) is another delimiter. Therefore, do not confuse the MySQL delimiter with pipe as well as semicolon.Note: Here, we are ... Read More
George John
9K+ Views
To insert decimal into MySQL, you can use DECIMAL() function from MySQL. The syntax is as followsyourColumnName DECIMAL(TotalDigit, DigitAfterDecimalPoint);To understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table DecimalInsert -> ( -> Id int, -> Name ... Read More
George John
691 Views
To get the output MySQL query result in CSV format, use concat(). The syntax is as follows −mysql> select concat(StudentId, ', ', StudentName, ', ', StudentAge) as CSVFormat from CSVFormatOutputs;To understand the above syntax, let us create a table. The query to create a table is as follows−mysql> create table ... Read More
George John
599 Views
The following is an example to implement MySQL WHILE LOOP with IF statement. We are using in a stored procedureThe following is the query to create our stored procedure:mysql> DELIMITER // mysql> create procedure sp_getDaysDemo() -> BEGIN -> SELECT MONTH(CURDATE()) INTO @current_month; ... Read More
George John
224 Views
You can use multiplication operator (*) between two cells. The syntax is as followsSELECT yourColumnName1, yourColumnName2, yourColumnName1*yourColumnName2 as ‘anyVariableName’ from yourTableName;To understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table MultiplicationDemo -> ( -> FirstPrice int, ... Read More
George John
1K+ Views
To understand the MySQL convert timediff output to day, hour, minute, and second format, you need to use CONCAT() from MySQL.Let us create a table. The query to create a table is as follows:mysql> create table convertTimeDifferenceDemo -> ( -> Id int NOT NULL ... Read More
George John
167 Views
To get the output MySQL query result in CSV format, use concat_ws(). The syntax is as follows −SELECT CONCAT_WS(‘, ’, yourColumnName1, yourColumnName2, yourColumnName3, ....N) as anyVariableName from yourTableName;To understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create table CSVFormatOutputs ... Read More
George John
1K+ Views
If you are using Windows Operating System, check your directory my.cnf or my.ini file.mysql> select @@datadir;The following is the output+---------------------------------------------+ | @@datadir ... Read More