Therefore, when you processing the SELECT statement that has an SQL ORDER BY keyword, the ORDER BY the keyword is the very last clause to be processed. furthermore, also, SQL Server treats NULL as the lowest value.
If you don’t explicitly specify DESC or ASC, The by default SQL Server uses ASC sort order. In SQL, aggregate functions allow column expressions across multiple rows to be aggregated together to produce a single result. The DESC sorts the result set from the highest value to the lowest one while The ASC sorts the result from the lowest value to the highest value. Maybe you can do: select t1.column1, t1.column2,t1.column3 If not the union then perhaps: remove the CONCAT () and break the three sections you have down to individuals: so for, an example using just the first section: Line Numbers case t1.testColumn when 'value1' then t1.column1 as outputColumn1, case t1. The syntax is as follows Case 1 Using OR select from yourTablename where yourColumnName value1 or yourColumnName value2 or yourColumnName value3.N Case 2 Using IN select from yourTableName where yourColumnName IN (value1,value2. The columns that appear in the SQL ORDER BY The keyword must correspond to either column in the select list or to columns defined in the table specified in the FROM clause.ĪSC | DESC: The Second, You will be using the ASC or DESC to specify whether the values in the specified column should be sorted in descending or ascending order. To select multiple values, you can use where clause with OR and IN operator. furthermore, If you will specify multiple columns, then the result set is sorted by the first column and then that sorted result set is sorted by the second column, and so on.
ASC| DESC Ĭolumn_name | expression: AS you see in general Syntax, first, you will be specifying a column name or an expression on which to sort the result set of the query.
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