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  • database - How to select unique records by SQL - Stack Overflow
    DISTINCT keyword is supposed to be applied to all the columns in the select query and not just to the column next to which DISTINCT keyword is written So, basically, it means that every row returned in the result will be unique in terms of the combination of the select query columns
  • sql - select distinct a. * from table query - Stack Overflow
    1> As already mentioned, this query will work if the table tbl_applicant exists 2> 'a' in the query is just an alias for the table name 'tbl_applicant' In your case a * is the same as a doesn't mask change anything on the result "*" itself will select all columns of the table Whether this is OK depends on your system
  • MySQL: Select DISTINCT UNIQUE, but return all columns?
    SELECT DISTINCT FIELD1, FIELD2, FIELD3 FROM TABLE1 works if the values of all three columns are unique in the table If, for example, you have multiple identical values for first name, but the last name and other information in the selected columns is different, the record will be included in the result set
  • sql - DISTINCT clause with WHERE - Stack Overflow
    SELECT * FROM table WHERE NOT EXISTS ( ( SELECT email FROM table ) EXCEPT ALL ( SELECT DISTINCT email FROM table ) ); 2 Select all email values that are unique to the table relation Query 1 in style of our previous query
  • How to use DISTINCT and ORDER BY in same SELECT statement?
    also with MS T-SQL SELECT distinct top 100 percent or top 10 what ever you need distinct with top is aviable since 2005 SELECT distinct top 100 percent Category,CreationDate FROM MonitoringJob ORDER BY CreationDate DESC SELECT distinct top 10 Category,CreationDate FROM MonitoringJob ORDER BY CreationDate DESC
  • How can I Select Distinct from 2 different tables?
    Use a distinct with a subquery which contains a union select distinct product_type from ( select product_type from table 1 union select product_type from table 2 ) t The "t" at the end is the alias to the subquery, so, you can say t produc_type and it'll mean "the field product_type from the subquery called t"
  • sql - how to select distinct records in oracle? - Stack Overflow
    SQL> select distinct deptno, job from emp order by empno; select distinct deptno, job from emp order by empno * ERROR at line 1: ORA-01791: not a SELECTed expression SQL> It won't work (as you already know)
  • SQL query to find distinct values in two tables? - Stack Overflow
    SELECT T1 Code, T2 Code FROM (SELECT DISTINCT Code FROM Table1) T1 FULL OUTER JOIN (SELECT DISTINCT Code FROM Table2) T2 ON T1 Code = T2 Code In MySQL the UNION removes duplicates SELECT T1 Code, T2 Code FROM Table1 T1 LEFT OUTER JOIN Table2 T2 ON T1 Code = T2 Code UNION SELECT T1 Code, T2 Code FROM Table1 T1 RIGHT OUTER JOIN Table2 T2 ON T1
  • sql - DISTINCT for only one column - Stack Overflow
    SELECT DISTINCT TOP 1 ID, Email, ProductName, ProductModel FROM Products ORDER BY ID DESC The TOP 1 will return only the first record, by ordering it by the ID descending it will return the results with the last row first





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