[英]How to create a stored procedure to select multiple data and display in one column in SQL Server
[英]How to get one data table from Stored procedure that has multiple select statements using sql server
我的存儲過程中有兩個select
語句:
alter proc multiple
select * from table-one
select * from table-two
現在如何僅通過執行存儲過程來獲取表一的數據?
您可以傳遞輸入變量並使用if語句。 例如:
ALTER PROCEDURE multiple
@choice INT
AS
BEGIN
IF (@choice = 1)
BEGIN
SELECT * FROM Table1
END
IF (@choice = 2)
BEGIN
SELECT * FROM Table2
END
IF (@choice = 3)
BEGIN
SELECT * FROM Table1
SELECT * FROM Table2
END
END
並執行程序:
EXECUTE multiple @choice = 1 -- to use 1st select
EXECUTE multiple @choice = 2 -- to use 2st select
EXECUTE multiple @choice = 3 -- to use both selects
您可以使用TEMP表將所有結果填充到temp表中。
如果您有3個表名tab_1,tab_2,tab_3,則創建一個臨時表,其中臨時表的最大列為這些表(tab_1,tab_2,tab_3),並向臨時表添加一個額外的列,以從表中識別數據。
tab_1(id bigint,name varchar(50))
tab_2(id bigint,email varchar(50))
tab_3(id bigint,address varchar(50),phone varchar(50))
那么你的臨時表應該是這樣的
#tmp(col1 bigint(),col2 varchar(50),col3 varchar(50),from_table varchar(50))
例如
create table tab_1
(
id bigint identity(1,1),
name varchar(50),
email varchar(50)
)
insert into tab_1(name,email) values
('a','a@mail.com'), ('b','c@mail.com'),
('a1','a1@mail.com'), ('a2','a2@mail.com'),
('a3','a3@mail.com'), ('a4','a4@mail.com'),
('b1','b1@mail.com'),('b2','b2@mail.com')
create table tab_2
(
id bigint identity(1,1),
name varchar(50),
email varchar(50),
amount decimal(18,2)
)
insert into tab_2(name,email,amount) values
('a','a@mail.com',12.5), ('b','c@mail.com',11.6),
('a1','a1@mail.com',11.7), ('a2','a2@mail.com',88.9),
('a3','a3@mail.com',90), ('a4','a4@mail.com',45),
('b1','b1@mail.com',78),('b2','b2@mail.com',88)
Sp應該像
create table #tab(col1 bigint,
col2 varchar(50),
col3 varchar(50),col4 varchar(50),table_from varchar(50))
insert into #tab(col1,col2,col3,table_from)
select id,name,email,'table_1' from tab_1
insert into #tab(col1,col2,col3,col4,table_from)
select id,name,email,amount,'table_2' from tab_2
select * from #tab
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