1 SQL conditional for a CASE update 2 Updating multiple columns depending on 1 CASE-condition 3 Query using CASE WHEN 2 Using CASE to update column value depending on other column values 0 Update row based on conditional value 1 MYSQL - UPDATE multiple fields based on single CASE sta...
CASE表达式是用来判断条件的,条件成立时返回某个值,条件不成立时返回另一个值。 语法: CASEWHENComparsionConditionTHENresultWHENComparsionConditionTHENresultELSEotherEND (注:各分支返回的数据类型需一致。) (注:when子句一定要有排他性,因为当when子句为真时,剩余的when子句会被忽略。) CASE表达式的用途: 1,转换...
With the searched CASE expression, we can have multiple WHEN conditions: SELECT [BusinessEntityID],[JobTitle],[HireDate],Seniority=CASE WHENDATEDIFF(YEAR,[HireDate],GETDATE())>10 THEN'Longer than 10 years'WHENDATEDIFF(YEAR,[HireDate],GETDATE())=10 THEN'Exactly 10 years'WHENDATEDIFF(YEAR,[...
1 Poor SQL Server Performance With Nested "OR" Conditions In LEFT OUTER JOIN 0 Nullable smallint column usage in a CASE Statement nested in a STUFF function Hot Network Questions How do exchange mail enabled security groups handle emails to multiple groups with overlapping members? Cheapest...
I want to count only where Provider is P1 and AltProvider is empty. I don't know why following SQL is not returning correct result. When I give only one condition i get correct value from the table. SELECT F.Requirements , Count(F.TS_NAME)AS TotalTestCases ...
PostgreSQL CASEs can have multiple conditions. There are a handful of entries in the table where the name of country and capital is the same. You can add this to your previously constructed CASE - SELECT name, continent, indep_year, CASE WHEN (indep_year < 1900) AND (countries.name = co...
In another example, the CASE statement in the WHERE clause consists of multiple WHEN conditions. SQL Server evaluates the first condition and checks for records satisfying the given conditions. -- source: https://www.MSSQLTips.comSELECTSalesOrderID,TerritoryID,ShipMethodID,BillToAddressIDFROM[Advent...
SQL: CASE Statement 1.CASE 写法如下: CASEWHENcondition1THENresult1WHENcondition2THENresult2WHENconditionNTHENresultNELSEresultEND; 解释:1)先匹配第一条,不匹配的话继续第二条,如此循环,只要找到匹配的就终止。如果都没有匹配的,就返回 ELSE里的语句,...
Simple Case Statement CASE [input_expression] WHEN when_expression THEN when_true_result_expression [...n] [ELSE else_result_expression] END Search Case Statement CASE WHEN Boolean_expression THEN when_true_result_expression [...n] [ELSE else_result_expression] END ...
1 Cannot use case and exists in an sql statement 3 mysql case satisfies more than one condition 2 mysql query with case statement 0 MySQL: Using Case statements 1 Can my code using two EXISTS clauses be simplified using a CASE statement? 0 case when mysql with multiple conditions ...