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15 wrz 2008 · If you need to write just one condition, then iif() is sufficient, however if you want to write multiple iif() conditions within one statement then you will have to use `case' statement as demonstrated in above responses. Here is an example for your reference.
12 wrz 2019 · TRY_PARSE isn't a built in function. Also tried a few variations of: SELECT SUBSTRING(Text, 46, 4) AS Year, CASE WHEN CAST(SUBSTRING(Text, 46, 4) AS INT) IS NULL THEN 'Error'. WHEN CAST(Year AS INT) IS NULL < YEAR(GETDATE()) THEN 'In the past'. ELSE 'In the future'. END TEXT.
30 paź 2023 · WHERE (Department = 'IT' AND Salary > 60000) OR (Department = 'HR' AND Salary <= 60000); This query utilizes the WHERE clause with AND/OR operators as an SQL if statement in SELECT to combine multiple conditions, allowing the retrieval of specific records based on complex conditional logic. sql.
22 sie 2018 · In our examples, we used C++, but when we passed our strings, we called the c_str() method, in order to convert the string in a character array: this proves that all the routines utilised can be utilised in C as well.
3 wrz 2024 · Syntax. IF boolean_expression { sql_statement | statement_block } [ ELSE { sql_statement | statement_block } ] Arguments. boolean_expression. An expression that returns TRUE or FALSE. If the Boolean expression contains a SELECT statement, the SELECT statement must be enclosed in parentheses. { sql_statement | statement_block }
12 wrz 2022 · Using a Boolean Function in an Argument. The most common Boolean function found in a T-SQL IF statement is the EXISTS function. When combined with a query, this function returns true when the query returns at least one row. It returns false when the query returns no rows.
The SQL CASE Expression. The CASEexpression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSEclause.
