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Does Ternary operation exist in MySQL just like C or C++?
Yes, let us first see the working of ternary operator in C or C++ language.
X=(X > 10 && ( X-Y) < 0) ?: X:(X-Y);
Here is the demo code in C language. After that we will check in MySQL. The C code is as follows −
#include <stdio.h> int main() { int X; int Y; int result; printf("Enter the value for X:"); scanf("%d",&X); printf("Enter the value for Y:"); scanf("%d",&Y); result=( X > 1 && (X-Y) < 0) ? X: (X-Y); printf("The Result is=%d",result); return 0; }
The snapshot of C code is as follows −
The following is the output −
The syntax for MySQL ternary operations is as follows −
select case when yourtableAliasName.yourColumnName1 > 1 AND (yourtableAliasName.yourColumnName1-yourtableAliasName.yourColumnName2) < 0 THEN 0 ELSE (yourtableAliasName.yourColumnName1-yourtableAliasName.yourColumnName2) END AS anyAliasName from yourTableName yourtableAliasName;
To understand the above syntax for Trenary operation, let us create a table. The query to create a table is as follows −
mysql> create table TernaryOperationDemo -> ( -> X int, -> Y int -> ); Query OK, 0 rows affected (0.61 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into TernaryOperationDemo values(10,5); Query OK, 1 row affected (0.14 sec) mysql> insert into TernaryOperationDemo values(5,15); Query OK, 1 row affected (0.16 sec) mysql> insert into TernaryOperationDemo values(20,15); Query OK, 1 row affected (0.15 sec) mysql> insert into TernaryOperationDemo values(15,25); Query OK, 1 row affected (0.13 sec) mysql> insert into TernaryOperationDemo values(10,-11); Query OK, 1 row affected (0.15 sec)
Display all records from the table using select statement −
mysql> select *from TernaryOperationDemo;
The following is the output −
+------+------+ | X | Y | +------+------+ | 10 | 5 | | 5 | 15 | | 20 | 15 | | 15 | 25 | | 10 | -11 | +------+------+ 5 rows in set (0.00 sec)
Here is the query for ternary operation −
mysql> select case when tbl.X > 1 AND (tbl.X-tbl.Y) < 0 THEN 0 ELSE (tbl.X-tbl.Y) END AS Result from TernaryOperationDemo tbl;
The following is the output −
+--------+ | Result | +--------+ | 5 | | 0 | | 5 | | 0 | | 21 | +--------+ 5 rows in set (0.00 sec)
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