Sometimes you might want to list the records from one table or query with those from one or more other tables to form one set of records - a list with all the records from the two or more tables. This is the purpose of a union query in Access.

Applies to: Access 2013, Office 2013. Creates a union query, which combines the results of two or more independent queries or tables. Syntax [TABLE] query1 UNION [ALL] [TABLE] query2 [UNION [ALL] [TABLE] queryn [ … ]] The UNION operation has these parts:

Basically, I'm trying to convert this into SQL: SELECT Name, PhoneNumber . FROM Table1 (IF IT EXISTS) UNION. SELECT Name, Phone AS PhoneNumber. FROM Table2 (IF IT EXISTS) UNION . SELECT Name, PhoneNo AS PhoneNumber. FROM Table3 (IF IT …

Jun 7, 2024 · What is a UNION Query? A UNION query is used to combine the results of multiple SELECT queries into a single dataset. This can be incredibly useful when you need to pull together data from different tables or queries that share a similar structure.

UNION and UNION ALL are used to combine two Query results vertically into one Query, therefore both Queries require to have the same number of fields and same data types. When two Queries are combined, there could be rows of record that are exactly the same (duplicates).

The SQL UNION Operator. The UNION operator is used to combine the result-set of two or more SELECT statements. Every SELECT statement within UNION must have the same number of columns; The columns must also have similar data types; The columns in every SELECT statement must also be in the same order; UNION Syntax

There is no Access/Jet/ACE restriction on UNION vs. UNION AL as Paul McCowat speculates. UNION eliminates dupes, UNION ALL does not. You should always use UNION ALL if you know for a fact that the records returned by each of your SELECTs do …

The UNION operation in Access creates a union query, which combines the results of two or more independent queries or tables. Syntax [TABLE] query1 UNION [ALL] [TABLE] query2 [UNION [ALL] [TABLE] queryn [ ...

The main difference between UNION ALL and UNION is that, UNION only selects distinct values, while UNION ALL selects all values (including duplicates). The syntax for UNION {ALL} is as follows: [SQL Statement 1] UNION {ALL} [SQL Statement 2]

A UNION SQL statement can merge the results of two or more queries, tables, and SELECT statements, in any combination. The ALL predicate will return all records including any duplicates. This will also make the query run faster.