SELECT *
FROM
(table1 FULL OUTER JOIN [FY14 PLEDGE_TOTAL]
ON table1.[Id] = [FY14 PLEDGE_TOTAL].[SID]);
I don't know why I'm getting this error on Access. When I remove the parentheses after 'FROM', I get syntax error on From clause. Please advise. Thanks!
Access does not support OUTER JOIN. You need the variant which would be LEFT JOIN or RIGHT JOIN with an Is Null criteria on the field where the data do not exist.
Here is Microsoft's take on the issue : http://office.microsoft.com/en-gb/access-help/creating-an-outer-join-query-in-access-HA001034555.aspx
Or something much helpful : http://www.databasejournal.com/features/msaccess/article.php/3516561/Implementing-the-Equivalent-of-a-FULL-OUTER-JOIN-in-Microsoft-Access.htm
MS Access don't have support for FULL OUTER JOIN but the same can be emulated using UNION of both a LEFT JOIN and RIGHT JOIN like below
SELECT *
FROM table1 t1
LEFT JOIN [FY14 PLEDGE_TOTAL] fpt
ON t1.[Id] = fpt.[SID]
UNION
SELECT *
FROM table1 t2
RIGHT JOIN [FY14 PLEDGE_TOTAL] fpt1
ON t2.[Id] = fpt1.[SID];
Related
i am new to SQL and have been trying to have an SQL query in MS Access to join multiple tables using the below sql. This is for doing access testing.
Have explained what i intent to achieve in bold
SELECT
Table1.Role,
Table1.Object,
Table 1 is the base table which has role, authorization object
Table2.Role,
Table2.User_Name,
Table 2 has the users mapped to the role
Table3.Org_Level_Desp,
Table3.Org_LEvel_Values_1,
Table 3 has controls at organization level, this determine which company or plant the user can access
Table4.Role_Description,
Table 4 has role descriptions for roles mentioned in Table 1
Table5.Full_Name,
Table5.Department,
Table 5 has user name and department. Common field is user name from table 2
FROM
Table1
RIGHT JOIN Table2 ON Table1.Role=Table2.Role
RIGHT JOIN Table3 ON Table1.Role=Table3.Role
RIGHT JOIN Table4 ON Table1.Role=Table4.rOLE
Joining required tabled from Table 2, 3 and 4 to Table 1
FROM
Table2
RIGHT JOIN Table5 ON Table2.USER_NAME=Table5.USer
Joining required tables from table 5 to table 1
I am getting multiple syntax error for the above query. I think i am missing on something basic - Can anyone help ?
Thanks !
Uday
Seems i cannot add more in comment. Sorry, below is the code that i updated, still getting the same error. Can you please advise ?
SELECT
TABLE1.Role,
TABLE1.Object,
TABLE1.Field_name,
TABLE1.Value,
TABLE1.[and],
TABLE1.ID_whether_object_is_deleted,
TABLE2.Role,
TABLE2.User_Name,
TABLE2.End_date,
TABLE3.Org_Level_Control,
TABLE3.Org_LEvel_Values_1,
TABLE3.Org_LEvel_Values_2,
Table4.Role_Description,
TABLE6.Field_Short_Description,
TABLE7.Object_Level_Desp,
TABLE8.Auth_Obj_Text,
TABLE5.Full_Name,
TABLE5.Department,
TABLE9.Valid_to,
TABLE9.Lock,
from ((((((TABLE1 INNER JOIN TABLE2 ON TABLE1.Role=TABLE2.Role)
INNER JOIN TABLE3 ON TABLE1.Role=TABLE3.Role)
INNER JOIN Table4 ON TABLE1.Role=Table4.role)
INNER JOIN TABLE6 ON TABLE1.Field_Name=TABLE6.Field_Name)
INNER JOIN TABLE7 ON TABLE1.[Object]=TABLE7.Org_Object)
INNER JOIN TABLE8 ON AGR_TABLE1.Field_name=TABLE8.Field_Name)
FROM
(TABLE2 INNER JOIN TABLE5 ON TABLE2.USER_NAME=TABLE5.[USer])
INNER JOIN TABLE9 ON TABLE2.USER_NAME=TABLE9.[User]);
Below is the code that i updated, still getting the same error. Can you please advise ?
SELECT
TABLE1.Role,
TABLE1.Object,
TABLE1.Field_name,
TABLE1.Value,
TABLE1.[and],
TABLE1.ID_whether_object_is_deleted,
TABLE2.Role,
TABLE2.User_Name,
TABLE2.End_date,
TABLE3.Org_Level_Control,
TABLE3.Org_LEvel_Values_1,
TABLE3.Org_LEvel_Values_2,
Table4.Role_Description,
TABLE6.Field_Short_Description,
TABLE7.Object_Level_Desp,
TABLE8.Auth_Obj_Text,
TABLE5.Full_Name,
TABLE5.Department,
TABLE9.Valid_to,
TABLE9.Lock,
from ((((((TABLE1 INNER JOIN TABLE2 ON TABLE1.Role=TABLE2.Role)
INNER JOIN TABLE3 ON TABLE1.Role=TABLE3.Role)
INNER JOIN Table4 ON TABLE1.Role=Table4.role)
INNER JOIN TABLE6 ON TABLE1.Field_Name=TABLE6.Field_Name)
INNER JOIN TABLE7 ON TABLE1.[Object]=TABLE7.Org_Object)
INNER JOIN TABLE8 ON AGR_TABLE1.Field_name=TABLE8.Field_Name)
I have no idea why you would want RIGHT JOIN, particularly if you are learning SQL. Start with INNER JOIN. If that is leaving out rows, then move to LEFT JOIN.
The syntax in MS Access uses parentheses:
SELECT . . .
FROM (((Table1 INNER JOIN
Table2
ON Table1.Role = Table2.Role
) INNER JOIN
Table3
ON Table1.Role = Table3.Role
) INNER JOIN
Table4
ON Table1.Role = Table4.rOLE
) INNER JOIN
Table5
ON Table2.USER_NAME = Table5.USer
You can then select the columns you want in the SELECT.
Note that the parentheses would look quite awkward in any other database.
Re: your updated SQL.
Value is a reserved word in Access SQL, so may be others like Role, Object, Lock. Put these into [square brackets], both in the SELECT and the FROM clause.
And you have an extraneous comma at the end of your SELECT clause:
TABLE9.Valid_to,
TABLE9.Lock, <== delete this comma
from ((((((TABLE1 INNER JOIN TABLE2 ON TABLE1.Role=TABLE2.Role)
Suppose I have a FROM clause like so :
FROM
apps.po_requisition_lines_all prl,
apps.po_requisition_headers_all prha,
po.po_req_distributions_all prda,
po.po_distributions_all pda,
po.po_headers_all pha
where 1=1
and prl.requisition_header_id= prha.requisition_header_id
and prl.requisition_line_id= prda.requisition_line_id
and prda.distribution_id= pda.req_distribution_id(+)
and pha.po_header_id(+)=pda.po_header_id
Then how does this type of OUTER JOIN get converted if we want to use normal JOIN syntax ? thanks !
Without seeing the schema, I find it difficult but this should set you in the right direction:
FROM apps.po_requisition_lines_all prl
INNER JOIN apps.po_requisition_headers_all prha ON prl.requisition_header_id = prha.requisition_header_id
INNER JOIN po.po_req_distributions_all prda ON prda.requisition_line_id = prl.requisition_line_id
LEFT JOIN po.po_distributions_all pda ON prda.distribution_id = pda.req_distribution_id
-- I note from the example provided that this is a right join
-- Without seeing the schema, it looks to me as though it should be left
-- As I say say, without seeing the schema, I probably shouldn't pass comment
RIGHT JOIN po.po_headers_all pha ON pha.po_header_id = pda.po_header_id;
For an INNER JOIN you can just say JOIN although I think that explicitly saying INNER aids readability. I also note the example provided has WHERE 1=1 which is redundant.
The + is old version of Outer Joins, and it differs where the + comes after equality sign or before it, But now it's recommended to use Join keywords instead of +, about the + sign if it comes:
After =:
select * from t1, t2
where t1.id=t2.id(+)
This means Left Outer Join:
select * from t1
left outer join t2 on t1.id=t2.id
Before =:
select * from t1, t2
where t1.id(+)=t2.id
This means Right Outer Join:
select * from t1
Right outer join t2 on t1.id=t2.id
Without +:
select * from t1, t2
where t1.id=t2.id
This means Inner Join:
select * from t1
join t2 on t1.id=t2.id
I am new to sql and I am trying to join 4 tables together but just cant get the hang of it.
I am trying to do this with an inner join but I always get an syntax error with access.
SELECT *
from kdst,aufpos
inner join( artst inner join vert on kdst.vertreter = vert.vertnr)
on aufpos.artnr = artst.artnr;
This is my code but it does not work. I dont know what to do anymore, I hope someone can help me.
Build using the query design window
Then switch to sql view
Select *
From table1 t1
Inner join table2 t2 on t1.id = t2.fkid
Inner join table3 t3 on t1.id = t3.fkid
...
This is if you want to join multiple tables to the same parent table (table1). Fkid is the column of the foreign key field that refers to the primary key of the parent table.
Both these joins will give me the same results:
SELECT * FROM table JOIN otherTable ON table.ID = otherTable.FK
vs
SELECT * FROM table INNER JOIN otherTable ON table.ID = otherTable.FK
Is there any difference between the statements in performance or otherwise?
Does it differ between different SQL implementations?
They are functionally equivalent, but INNER JOIN can be a bit clearer to read, especially if the query has other join types (i.e. LEFT or RIGHT or CROSS) included in it.
No, there is no difference, pure syntactic sugar.
INNER JOIN = JOIN
INNER JOIN is the default if you don't specify the type when you use the word JOIN.
You can also use LEFT OUTER JOIN or RIGHT OUTER JOIN, in which case the word OUTER is optional, or you can specify CROSS JOIN.
OR
For an INNER JOIN, the syntax is:
SELECT ...
FROM TableA
[INNER] JOIN TableB
(In other words, the INNER keyword is optional--results are the same with or without it.)
Does it differ between different SQL implementations?
Yes, Microsoft Access doesn't allow just join. It requires inner join.
Similarly with OUTER JOINs, the word "OUTER" is optional. It's the LEFT or RIGHT keyword that makes the JOIN an "OUTER" JOIN.
However for some reason I always use "OUTER" as in LEFT OUTER JOIN and never LEFT JOIN, but I never use INNER JOIN, but rather I just use "JOIN":
SELECT ColA, ColB, ...
FROM MyTable AS T1
JOIN MyOtherTable AS T2
ON T2.ID = T1.ID
LEFT OUTER JOIN MyOptionalTable AS T3
ON T3.ID = T1.ID
As the other answers already state there is no difference in your example.
The relevant bit of grammar is documented here
<join_type> ::=
[ { INNER | { { LEFT | RIGHT | FULL } [ OUTER ] } } [ <join_hint> ] ]
JOIN
Showing that all are optional. The page further clarifies that
INNER Specifies all matching pairs of rows are returned. Discards
unmatched rows from both tables. When no join type is specified, this
is the default.
The grammar does also indicate that there is one time where the INNER is required though. When specifying a join hint.
See the example below
CREATE TABLE T1(X INT);
CREATE TABLE T2(Y INT);
SELECT *
FROM T1
LOOP JOIN T2
ON X = Y;
SELECT *
FROM T1
INNER LOOP JOIN T2
ON X = Y;
Both these joins will give me the same results:
SELECT * FROM table JOIN otherTable ON table.ID = otherTable.FK
vs
SELECT * FROM table INNER JOIN otherTable ON table.ID = otherTable.FK
Is there any difference between the statements in performance or otherwise?
Does it differ between different SQL implementations?
They are functionally equivalent, but INNER JOIN can be a bit clearer to read, especially if the query has other join types (i.e. LEFT or RIGHT or CROSS) included in it.
No, there is no difference, pure syntactic sugar.
INNER JOIN = JOIN
INNER JOIN is the default if you don't specify the type when you use the word JOIN.
You can also use LEFT OUTER JOIN or RIGHT OUTER JOIN, in which case the word OUTER is optional, or you can specify CROSS JOIN.
OR
For an INNER JOIN, the syntax is:
SELECT ...
FROM TableA
[INNER] JOIN TableB
(In other words, the INNER keyword is optional--results are the same with or without it.)
Does it differ between different SQL implementations?
Yes, Microsoft Access doesn't allow just join. It requires inner join.
Similarly with OUTER JOINs, the word "OUTER" is optional. It's the LEFT or RIGHT keyword that makes the JOIN an "OUTER" JOIN.
However for some reason I always use "OUTER" as in LEFT OUTER JOIN and never LEFT JOIN, but I never use INNER JOIN, but rather I just use "JOIN":
SELECT ColA, ColB, ...
FROM MyTable AS T1
JOIN MyOtherTable AS T2
ON T2.ID = T1.ID
LEFT OUTER JOIN MyOptionalTable AS T3
ON T3.ID = T1.ID
As the other answers already state there is no difference in your example.
The relevant bit of grammar is documented here
<join_type> ::=
[ { INNER | { { LEFT | RIGHT | FULL } [ OUTER ] } } [ <join_hint> ] ]
JOIN
Showing that all are optional. The page further clarifies that
INNER Specifies all matching pairs of rows are returned. Discards
unmatched rows from both tables. When no join type is specified, this
is the default.
The grammar does also indicate that there is one time where the INNER is required though. When specifying a join hint.
See the example below
CREATE TABLE T1(X INT);
CREATE TABLE T2(Y INT);
SELECT *
FROM T1
LOOP JOIN T2
ON X = Y;
SELECT *
FROM T1
INNER LOOP JOIN T2
ON X = Y;