Lab Sql

How do I adapt the query below so that it doesn't perform unnecessary UNION ALL unless the SELE… Read more Abort Subsequent Union All Commands If Match Found [h2]

I want to insert 2 lines in a table within one insert into statement with Oracle SQL. This code wor… Read more Insert Into With Union All And Nextval Doesn't Work With Duplicate Values

I want to select the latest records from the DB in SQL Server. If only one item is selected the fin… Read more Select Top With Multiple Union And With Order By

I have three queries and i have to combine them together. Query 1 WITH ph AS (SELECT chrd, chwo… Read more How To Combine Three Queries?

I have a query made of three select clause like this: select id, colors from table1 union all s… Read more How To Sort The Result Of Multiple Queries Alternatively?

I have three queries with results. Query 1: SELECT DISTINCT employeeid, work.clientid, ROUND ((CAST… Read more Combining 3 Select Statements To Output 1 Table

I have a DB view which basically consists of two SELECT queries with UNION ALL, like this: CREATE V… Read more Slow Query On "union All" View