I am trying to create a procedure that allows for a variable to be used as a table name.
Example:
Select Temp1, Temp2
From #var
The #var has the correct table name but changes with each iteration through the while loop.
-- Above sets up all Variables
WHILE #Count >= #I
BEGIN
SET #ObjectID = (SELECT ObjectID FROM #TmpTable WHERE ID = #I)
SET #TableName = (SELECT TableName FROM #TmpTable WHERE ID = #I)
IF #I = 8
BEGIN
SELECT *
INTO ##TMPTable
FROM #TableName
-- Additional Processing
END
END
DECLARE
#SQLString varchar(max),
#TempTableName varchar(100)
SET #TempTableName = '##TMPTable' + cast( ##spid AS varchar(5))
WHILE #Count >= #I
BEGIN
SET #ObjectID = (SELECT ObjectID FROM #TmpTable WHERE ID = #I)
SET #TableName = (SELECT TableName FROM #TmpTable WHERE ID = #I)
IF #I = 8
BEGIN
set #SQLString = '
SELECT *
INTO ' + #TempTableName + '
FROM ' + #TableName
EXECUTE ( #SQLString )
EXECUTE ( 'SELECT * from ' + #TempTableName)
-- Additional Processing
END
END
Related
I have a query with a select statement in a loop and at the same time I want to insert a varchar variable and selected value into a temporary table, but I get an error like:
Msg 207, Level 16, State 1, Line 2
Invalid column name 'SP419001_SID'
This SP419001_SID is the value contained in the varchar variable #dbName.
This is my query:
CREATE TABLE #tempCounter
(
dbName1 varchar(max),
counterNumber1 int
)
DECLARE
#counter INT = 1,
#max INT = 0,
#dbName VARCHAR(100),
#count INT = 0,
#SQLTEXT VARCHAR(MAX),
#counterNumber VARCHAR(10)
SELECT #max = COUNT(id) FROM #tempPnamePadd
WHILE #counter <= #max
BEGIN
SET #dbName='';
-- Do whatever you want with each row in your table variable filtering by the Id column
SELECT #dbName = name
FROM #tempPnamePadd
WHERE Id = #counter
PRINT #dbName
SET #SQLTEXT =
--SELECT distinct PN.NAME_FORMAT_CODE, NAME_BUSINESS, INDIVIDUAL_FIRST, A.ADDRESS_ID, A.ADDR_LINE_1, A.ADDR_LINE_2, A.ADDR_LINE_3, A.CITY, A.STATE
'DECLARE #dbn VARCHAR(200)
SET #dbn ='+ #dbName +';
INSERT INTO #tempCounter
(dbname1, counternumber1)
SELECT #dbn ,
(SELECT count(*)
FROM '+ #dbName +'.dbo.PRELA PR
INNER JOIN '+ #dbName +'.dbo.PNAME PN
ON PR.NAME_ID = PN.NAME_ID
INNER JOIN '+ #dbName +'.dbo.PNALK NK
ON PN.NAME_ID = NK.NAME_ID
INNER JOIN '+ #dbName +'.dbo.PADDR A
ON NK.ADDRESS_ID = A.ADDRESS_ID
WHERE (NAME_FORMAT_CODE=''B'' and NAME_BUSINESS like ''%BN'') OR
(NAME_FORMAT_CODE <> ''B'' and INDIVIDUAL_FIRST = ''John'') OR
(ADDR_LINE_1=''WELLS STREET'' AND CITY=''HOLLYWOOD'' AND STATE=''IA'')
)
'
--PRINT #SQLTEXT
EXEC (#SQLTEXT)
SET #counter = #counter + 1
END
This is very likely not the most efficient way to do this; most likely you should be using STRING_AGG or FOR XML PATH and STUFF to do this.
Anyway, you need to parametrise your variable, and quote your dynamic objects. This results in the below:
CREATE TABLE #tempCounter (dbName1 sysname,
counterNumber1 int);
DECLARE #counter int = 1,
#max int = 0,
#dbName sysname,
#count int = 0,
#SQLTEXT nvarchar(MAX),
#counterNumber varchar(10);
SELECT #max = COUNT(id)
FROM #tempPnamePadd;
WHILE #counter <= #max
BEGIN
SET #dbName = '';
-- Do whatever you want with each row in your table variable filtering by the Id column
SELECT #dbName = name
FROM #tempPnamePadd
WHERE Id = #counter;
PRINT #dbName;
SET #SQLTEXT = N'INSERT INTO #tempCounter
(dbname1, counternumber1)
SELECT #dbn ,
(SELECT count(*)
FROM ' + QUOTENAME(#dbName) + N'.dbo.PRELA PR
INNER JOIN ' + QUOTENAME(#dbName) + N'.dbo.PNAME PN
ON PR.NAME_ID = PN.NAME_ID
INNER JOIN ' + QUOTENAME(#dbName) + N'.dbo.PNALK NK
ON PN.NAME_ID = NK.NAME_ID
INNER JOIN ' + QUOTENAME(#dbName) + N'.dbo.PADDR A
ON NK.ADDRESS_ID = A.ADDRESS_ID
WHERE (NAME_FORMAT_CODE=''B'' and NAME_BUSINESS like ''%BN'') OR
(NAME_FORMAT_CODE <> ''B'' and INDIVIDUAL_FIRST = ''John'') OR
(ADDR_LINE_1=''WELLS STREET'' AND CITY=''HOLLYWOOD'' AND STATE=''IA'')
)
';
--PRINT #SQLTEXT
EXEC sp_executesql #SQLTEXT, N'#dbn sysname', #dbn = #dbName;
SET #counter = #counter + 1;
END;
Note I have also changed some of your data types.
You did not quote around #dbName in your dynamic query.
So instead of
SET #dbn ='SP419001_SID';
you get
SET #dbn =SP419001_SID;
Do
'DECLARE #dbn VARCHAR(200)
SET #dbn ='''+ #dbName +''';
INSERT INTO #tempCounter
...'
is it possible to do dynamic declarations?
I will explain: I have a table COLUMNAMES:
ID|Name
1|Country
2|City
3|District
4|Neighbourhood
For each record in that table I would like to do something like:
declare #i int = 1
declare #number int
set #number = (SELECT count(*) FROM COLUMNNAMES)
While #i <= #number
BEGIN
Execute ('Declare column' + #i +'varchar(25)')
Execute ('set column' + #i +' = (Select NAME from COLUMNAMES where id = ' + #i)
set #i = #i + 1
END
The idea is that I get a list of variables (strings) that I can use to create SELECT statements with dynamic table-aliases:
Execute ('Select SOMECOLUMN as ' + #columname + #i +', ANOTHERCOLUMN as ' + #columname + #i +', ATHIRDCOLUMN as ' + #columname + #i + ' FROM SOMETABLE')
Can this be done? If so, how?
Each Execute function as a different session.
So, in order to declare the variable, all the code must be in one Execute function.
No you can't declare variables like this, but you can use a temporary table with the data filled in.
Here is some help, but it is not a whole solution, just an idea what you can do instead of the not working declaration:
Create Table #ColumnNames(
NAME varchar(64)
)
While #i <= #number
BEGIN
INSERT INTO #ColumNames
Select NAME from COLUMNAMES where id = #i
set #i = #i + 1
END
DECLARE #Columns varchar(max)
SET #Columns = ''
SElECT #Columns = #Columns + NAME + ', '
FROM #ColumNames
This is not complete solution but a direction . you need to get the value 'SomeColumn' dynamically someway ,likely the way you are getting the aliases in the below solution.
declare #i int = 1
declare #number INT
DECLARE #ColName VARCHAR(25)
DECLARE #SQL VARCHAR(4000)=''
DECLARE #ColumnsWithAlias VARCHAR(4000) = ''
set #number = (SELECT count(*) FROM COLUMNNAMES)
While #i <= #number
BEGIN
Select #ColName= NAME from COLUMNAMES where id = #i)
SET #ColumnsWithAlias =#ColumnsWithAlias + 'SomeColumn'+ ' AS '+ #ColName + ' , '
set #i = #i + 1
END
SET #SQL= 'SELECT '#ColumnsWithAlias+' FROM TableName'
EXECUTE(#SQL)
I have a procedure and the code looks like this:
ALTER PROCEDURE [dbo].[usp_Gen_Proc]
(#ID INT )
AS
Begin
IF OBJECT_ID('tempdb..#procedure') IS NOT NULL
DROP TABLE #procedure
DECLARE #Name VARCHAR(100)
DECLARE #SQL VARCHAR(MAX)
DECLARE #Script VARCHAR(MAX),
#DB VARCHAR(100),
#Schema VARCHAR(100),
#Proc_Name VARCHAR(max),
#BR CHAR(2)
SET #BR = CHAR(10)+ CHAR(13)
SET NOCOUNT ON
SELECT #Name= [Procedure_Name] FROM dbo.datsource
WHERE [ID] = #ID
SELECT #Proc_Name = PARSENAME(#Name, 1) ,
#Schema = PARSENAME(#Name, 2) ,
#DB = PARSENAME(#Name, 3)
CREATE TABLE #procedure ( script VARCHAR(MAX) )
EXEC('INSERT INTO #procedure(script)
SELECT definition FROM '+#DB+'.sys.all_sql_modules sq
WHERE sq.object_id = (SELECT object_id FROM '+#DB+'.sys.objects
WHERE type = ''P'' AND name = '''+#Proc_Name+''' ) ')
SET #Script = ' Use ' +#BR +#DB + #BR+ ' Go' +#BR
SELECT #Script = #Script+script
FROM #procedure
DECLARE #pos INT =7500
SELECT #pos=CHARINDEX(CHAR(13)+CHAR(10),#script,#pos)
PRINT SUBSTRING(#Script,1,#Pos)
DECLARE #Counter INT
SET #Counter = 0
DECLARE #TotalPrints INT
SET #TotalPrints = ( LEN(#script) / 8000 )
WHILE #Counter < #TotalPrints
BEGIN
SET #Counter = #Counter + 1
PRINT SUBSTRING(#script,#pos+1,7500)
SET #pos = #pos+7500
SELECT #pos=CHARINDEX(CHAR(13)+CHAR(10),#script,#pos)
END
END
Basically what the procedure is doing it just prints the procedure code. But the problem I am facing is when I am printing it i am loosing some characters in between.
Can anyone let me know where I am going wrong?
Why do you want to print ?
Why you don't do a select with the script, put it in xml if you want to see everything.
Select Convert(xml, #script)
EDIT :
between you don't need to do +1
PRINT SUBSTRING(#script,#pos,7500)
I was wondering if someone could help me with creating a while loop to iterate through several databases to obtain data from one table from two columns. this is was I have done so far. nothing works because i do not know how to make the select statement work through each database with regards to the table that I am querying from each database (dbo.tbldoc)
DECLARE #Loop int
DECLARE #DBName varchar(300)
DECLARE #SQL varchar(max)
DECLARE #tableName VARCHAR(255)
SET #Loop = 1
SET #DBName = ''
WHILE #Loop = 1
BEGIN
SELECT [name] FROM sys.databases
WHERE [name] like 'z%' and create_date between '2010-10-17' and '2011-01-15'
ORDER BY [name]
SET #Loop = ##ROWCOUNT
IF #Loop = 0
BREAK
SET #SQL = ('USE ['+ #DBNAME +']')
IF EXISTS(SELECT [name] FROM sys.tables WHERE name != 'dbo.tbldoc' )
BEGIN
SELECT SUM(PGCOUNT), CREATED FROM **dbo.tbldoc**
END
ELSE
--BEGIN
PRINT 'ErrorLog'
END
I would consider sp_MSForEachDB which is a lot easier...
Edit:
EXEC sp_MSForEachDB 'USE [?]; IF DB_NAME() LIKE ''Z%%''
BEGIN
END
'
CREATE TABLE #T
(dbname sysname NOT NULL PRIMARY KEY,
SumPGCOUNT INT,
CREATED DATETIME)
DECLARE #Script NVARCHAR(MAX) = ''
SELECT #Script = #Script + '
USE ' + QUOTENAME(name) + '
IF EXISTS(SELECT * FROM sys.tables WHERE OBJECT_ID=OBJECT_ID(''dbo.tbldoc''))
INSERT INTO #T
SELECT db_name() AS dbname, SUM(PGCOUNT) AS SumPGCOUNT, CREATED
FROM dbo.tbldoc
GROUP BY CREATED;
'
FROM sys.databases
WHERE state=0 AND user_access=0 and has_dbaccess(name) = 1
AND [name] like 'z%' and create_date between '2010-10-17' and '2011-01-15'
ORDER BY [name]
IF (##ROWCOUNT > 0)
BEGIN
--PRINT #Script
EXEC (#Script)
SELECT * FROM #T
END
DROP TABLE #T
My code to search for data from more than one database would be:
use [master]
go
if object_id('tempdb.dbo.#database') is not null
drop TABLE #database
go
create TABLE #database(id INT identity primary key, name sysname)
go
set nocount on
insert into #database(name)
select name
from sys.databases
where name like '%tgsdb%' --CHANGE HERE THE FILTERING RULE FOR YOUR DATABASES!
and source_database_id is null
order by name
Select *
from #database
declare #id INT, #cnt INT, #sql NVARCHAR(max), #currentDb sysname;
select #id = 1, #cnt = max(id)
from #database
while #id <= #cnt
BEGIN
select #currentDb = name
from #database
where id = #id
set #sql = 'select Column1, Column2 from ' + #currentDb + '.dbo.Table1'
print #sql
exec (#sql);
print '--------------------------------------------------------------------------'
set #id = #id + 1;
END
go
DECLARE #Loop int
DECLARE #MaxLoop int
DECLARE #DBName varchar(300)
DECLARE #SQL varchar(max)
SET #Loop = 1
SET #DBName = ''
set nocount on
SET #MaxLoop = (select count([name]) FROM sys.databases where [name] like 'Z%')
WHILE #Loop <= #MaxLoop
BEGIN
SET #DBName = (select TableWithRowsNumbers.name from (select ROW_NUMBER() OVER (ORDER by [name]) as Row,[name] FROM sys.databases where [name] like 'Z%' ) TableWithRowsNumbers where Row = #Loop)
SET #SQL = 'USE [' + #DBName + ']'
exec (#SQL)
...
...
set #Loop = #Loop + 1
END
***Note: I didn't add the check if exists here.
I ended up writing one last week on the fly for some stuff I was doing.
Blog post here:
http://tsells.wordpress.com/2012/02/14/sql-server-database-iterator/
Here is the code.
SET NOCOUNT ON
GO
use master
go
Declare
#dbname nvarchar(500),
#variable1 int,
#variable2 int,
#variable3 int,
#totaldb int = 0,
#totaldbonserver int = 0,
#totaldbwithmatches int = 0
-- Get non system databases
Declare mycursor CURSOR for select name, database_id from SYS.databases where database_id > 4 order by name desc
open mycursor
fetch next from mycursor into #dbname, #variable1
while (##FETCH_STATUS <> -1)
BEGIN
DECLARE #ParmDefinition NVARCHAR(500)
Declare #mysql nvarchar(500) = 'select #variable2OUT = COUNT(*) from [' + #dbname + '].INFORMATION_SCHEMA.TABLES where Upper(TABLE_NAME) like ''MyTable''';
SET #ParmDefinition = N'#variable2OUT int OUTPUT'
set #totaldbonserver = #totaldbonserver + 1
Execute sp_executesql #mysql, #ParmDefinition, #variable2 OUTPUT
if #variable2 = 1
BEGIN
DECLARE #ParmDefinition2 NVARCHAR(500)
Declare #mysql2 nvarchar(500) = 'select #variable2OUT = COUNT(*) from [' + #dbname + '].dbo.MyTable';
SET #ParmDefinition2 = N'#variable2OUT int OUTPUT'
Execute sp_executesql #mysql2, #ParmDefinition2, #variable3 OUTPUT
set #totaldb = #totaldb + 1
if #variable3 > 1
BEGIN
Print #dbname + ' matched the criteria'
set #totaldbwithmatches = #totaldbwithmatches + 1
END
ELSE
Select 1
END
fetch next from mycursor into #dbname, #variable1
END
PRINT 'Total databases on server: '
Print #totaldbonserver
PRINT 'Total databases tested () : '
Print #totaldb
PRINT 'Total databases with matches: '
Print #totaldbwithmatches
CLOSE mycursor
DEALLOCATE mycursor
This doesn't use a loop. Hope this helps!
Note that "TABLE_OWNER" is that same as "SCHEMA Owner" and "TABLE_TYPE" will identify if the item is a table OR view.
--This will return all tables, table owners and table types for all database(s) that are NOT 'Offline'
--Offline database information will not appear
Declare #temp_table table(
DB_NAME varchar(max),
TABLE_OWNER varchar(max),
TABLE_NAME varchar(max),
TABLE_TYPE varchar(max),
REMARKS varchar(max)
)
INSERT INTO #temp_table (DB_NAME, TABLE_OWNER, TABLE_NAME, TABLE_TYPE,REMARKS)
EXECUTE master.sys.sp_MSforeachdb 'USE [?]; EXEC sp_tables'
SELECT DB_NAME, TABLE_OWNER, TABLE_NAME, TABLE_TYPE
FROM #temp_table
--Uncomment below if you are seaching for 1 database
--WHERE DB_NAME = '<Enter specific DB Name>'
--For all databases other than 'System Databases'
WHERE DB_NAME not in ('master','model','msdn','tempdb')
order by 1,2,3
You don't have to use a "USE DATABASE" statement. You can select from the particular database table by using a 3 part identifier as in:
select * from MyDatabase.dbo.MyTable
I know you can create a script to replicate a table using:
right click table > script table as > create to > new query editor window
But how can I generate a script that contains a bunch of insert commands for each row in the table?
Table1
Id1, Row1
Id2, Row2
Id3, Row3
Insert into Table1 values(Row1);
Insert into Table1 values(Row2);
Insert into Table1 values(Row3);
I ended up doing this
right click database > Tasks > Generate Scripts ... > selected the tables > in the advanced options I set "Types of data to script" to "Schema and data"
Select
'Insert into Table (
IntField1
StringField2
Column3)
values (' +
IntField1 + ',' +
+ '''' + StringField2 + ''',' +
Column2 + ')' as InsertQuery
From Table
Something like this, just remember if your string contains a single quote you will need to make sure you replace it like this replace(stringfield, '''', '''''')
So this isnt super pretty cuz I kind of took one of my sp's and hacked it up for this. But basically this will take any table and print a series of insert statements into a table called tbl_text (which you would need to create)
The arguments are the table name and the table ID from sysobjects
--this is how you get the tbl_id
SELECT id FROM sysobjects WHERE type = 'U' AND name = 'tablename'
CREATE PROCEDURE dbo.sp_export_table
#tblhdr varchar(100),
#tblID varchar(100)
AS
SET NOCOUNT ON
IF object_id('tempdb..##temptable') IS NOT NULL
BEGIN
DROP TABLE ##temptable
END
DECLARE #identity bit
DECLARE #typestmt nvarchar(100)
DECLARE #typeval int
DECLARE #rowstmt nvarchar(1000)
DECLARE #rowID varchar(50)
DECLARE #orderby nvarchar(100)
DECLARE #clmnstmt varchar(200)
DECLARE #clmnhdr varchar(50)
DECLARE #clmnstring varchar(1000)
DECLARE #valuestmt nvarchar(200)
DECLARE #valuestring nvarchar(3000)
DECLARE #value nvarchar(1000)
DECLARE #insertstmt varchar(1000)
DECLARE #params nvarchar(100)
DECLARE #param2 nvarchar(100)
SELECT #rowstmt = N'SELECT TOP 1 #inside_var = name FROM syscolumns WHERE id = ' + #tblID + ' ORDER BY colorder'
SELECT #params = N'#inside_var NVARCHAR(1000) OUTPUT'
EXEC sp_executesql #rowstmt, #params, #inside_var = #orderby OUTPUT
SELECT #rowstmt = 'SELECT *, ROW_NUMBER() OVER (ORDER BY ' + #orderby + ') AS row INTO ##temptable FROM ' + #tblhdr
exec(#rowstmt)
IF object_id('tempdb..##temptable') IS NOT NULL
BEGIN
DECLARE row_cursor CURSOR FOR
SELECT row FROM ##temptable
OPEN row_cursor
FETCH NEXT FROM row_cursor
INTO #rowID
--if table has identity and has records write identity_insert on
SET #identity = 0
IF EXISTS(SELECT * FROM INFORMATION_SCHEMA.TABLES
WHERE OBJECTPROPERTY(OBJECT_ID(TABLE_NAME),
'TableHasIdentity') = 1 AND TABLE_TYPE = 'BASE TABLE'
AND TABLE_NAME = #tblhdr) AND EXISTS(SELECT * FROM ##temptable)
BEGIN
SET #identity = 1
INSERT INTO dbo.tbl_text VALUES('SET IDENTITY_INSERT dbo.' + #tblhdr + ' ON')
END
WHILE ##FETCH_STATUS = 0
BEGIN
SELECT #clmnstmt = 'DECLARE column_cursor CURSOR FOR SELECT name FROM syscolumns WHERE id = ' + #tblID + ' ORDER BY colorder'
exec(#clmnstmt)
OPEN column_cursor
FETCH NEXT FROM column_cursor
INTO #clmnhdr
SELECT #clmnstring = '('
SELECT #valuestring = '('
WHILE ##FETCH_STATUS = 0
BEGIN
IF #clmnhdr <> 'row'
BEGIN
SELECT #clmnstring = #clmnstring + #clmnhdr + ','
SELECT #valuestmt = N'SELECT #inside_var = ' + #clmnhdr + ' FROM ##temptable WHERE row = ' + #rowID
EXEC sp_executesql #valuestmt, #params, #inside_var = #value OUTPUT
SELECT #typestmt = N'SELECT #inside_var2 = xtype FROM syscolumns WHERE name = ''' + #clmnhdr + ''' AND id = ' + #tblID
SELECT #param2 = N'#inside_var2 INT OUTPUT'
EXEC sp_executesql #typestmt, #param2, #inside_var2 = #typeval OUTPUT
IF #typeval NOT IN (48,52,56,59,60,62,104,108,122,127)
BEGIN
SET #value = REPLACE(#value,'''','''''')
SET #value = '''' + #value + ''''
SET #value = ISNULL(#value, '''''')
END
IF NOT (#typeval = 34)
BEGIN
SELECT #valuestring = #valuestring + #value + ','
END
ELSE
BEGIN
SELECT #valuestring = #valuestring + '''''' + ','
END
END
FETCH NEXT FROM column_cursor
INTO #clmnhdr
END
SET #clmnstring = LEFT(#clmnstring, LEN(#clmnstring) - 1)
SET #valuestring = LEFT(#valuestring, LEN(#valuestring) - 1)
INSERT INTO dbo.tbl_text VALUES('INSERT INTO dbo.' + #tblhdr + ' ' + #clmnstring + ') VALUES' + #valuestring + ')')
FETCH NEXT FROM row_cursor
INTO #rowID
CLOSE column_cursor
DEALLOCATE column_cursor
END
--if it wrote identity_insert on, turn it off
IF (#identity = 1)
BEGIN
INSERT INTO dbo.tbl_text VALUES('SET IDENTITY_INSERT dbo.' + #tblhdr + ' OFF')
END
CLOSE row_cursor
DEALLOCATE row_cursor
END
IF object_id('tempdb..##temptable') IS NOT NULL
BEGIN
DROP TABLE ##temptable
END
GO
If you've got an account on SSC, you can use the script I published last year. It works without cursors an it enables custom filtering.
http://www.sqlservercentral.com/scripts/Script+Data/65998/
Hope this helps
Assuming Row is an INT NOT NULL. You could write a SELECT statement that outputs SQL;
SELECT N'INSERT INTO Table1 VALUES (' + CAST(Row AS NVARCHAR(10)) + N');'
FROM Table1
Then output your results to text.