MySQL :: MySQL 8.4 Reference Manual :: 15.6.5.1 CASE Statement

clause, a Case not found for CASE statement error results. Each statement_list consists of one or more SQL statements; an empty statement_list is not permitted. To handle situations where...

Set an alternative of WHERE clause for each SELECT field in MySQL

Set an alternative of WHERE clause for each SELECT field in MySQL - You can use CASE statement −mysql> create table DemoTable1988 ( Value1 int, Value2 int, Price int ); Query OK, 0 rows affected (0...

MySQL :: MySQL 8.4 Reference Manual :: 10.2.1.19 LIMIT Query Optimization

clause, we expect it to use an ordered index, if possible. In this case, as we can see from the EXPLAIN output, it uses the table's primary key. mysql> EXPLAIN SELECT c2 FROM t -> WHERE id2...

SQL injection in 'order by' clause

※ 참고자료 중 영어자료도 포함되어 오역이 있을수 있습니다. 지적해주시면 성실히 수정하도록 하겠습니다. ▶ order by clause SQL Injection 요소 탐지 다음과 같은 쿼리문의 있다고 가정하자(단, member: 테이블명, id: 'member' 테이블의 id칼럼), SELECT * FROM member WHERE 1 GROUP BY...

Can we use WHERE clause inside MySQL CASE statement?

Can we use WHERE clause inside MySQL CASE statement - For this, use the CASE WHEN statement. Let us first create a table −mysql> create table DemoTable1040 ( Value1 int, Value2 int, Value3 int ); Q...

sql server - SQL CASE in Where Clause?

value where empName is equal to passed parameter @empName, and same with @empLoc. I know i can write separate sql's in same stored procedure but i want to do it using CASE clause, since it...

SQL Switch/Case in 'where' clause

I'm trying to do this in SQL: declare @locationType varchar(50); declare @locationID int; SELECT column1, column2 FROM viewWhatever WHERE CASE @locationType WHEN 'location' THEN account...

LIKE injection

I saw a SELECT … WHERE … LIKE query with lots of percent signs in the LIKE clause. It was pretty obvious that this term was user-provided and my first thought was SQL injection. Looking at the code, it turned out that we were using a user-provided term directly in the LIKE clause without any checks for metacharacters that are interpreted in this context ( %, _, ). ...

8. Using the WHERE Clause in a Query

case sensitive SQL 은 기본적으로 Case Sensitive 하지 않다. 대소문자를 가리지 않는데, 유의할 점이 하나 있다. 위 두 개의 SQL Statement 는 전혀 다른 결과를 가져온다는 것이다. 'when it comes to comparison, it is strict' Select clause 동작 과정 살펴보기 Apex 에...

sql - Using CASE in WHERE clause?

I am getting the following error in my WHERE clause on the very last AND statement AND CAST(cp.EndDate...). I just added the CASE statement to know if the month is January and to compare the cp.