Only fetching first value in column - sql

Question

CREATE PROC [dbo].[usp_InsertGenerator]
AS
BEGIN
DECLARE #tablename varchar(max)
DECLARE cursCol1 CURSOR FOR
SELECT name FROM sys.tables
OPEN cursCol1
FETCH NEXT FROM cursCol1 INTO #tablename
DECLARE cursCol CURSOR FOR
SELECT column_name, data_type
FROM information_schema.columns
WHERE table_name = #tableName
OPEN cursCol
DECLARE #string nvarchar(3000)
DECLARE #stringData nvarchar(3000)
DECLARE #dataType nvarchar(1000)
SET #string='INSERT '+#tableName+'('
SET #stringData=''
DECLARE #colName nvarchar(50)
FETCH NEXT FROM cursCol INTO #colName,#dataType
IF ##fetch_status<>0
BEGIN
PRINT 'Table '+#tableName+' not found, processing skipped.'
--FETCH NEXT FROM cursCol1 INTO #tablename
CLOSE curscol
DEALLOCATE curscol
RETURN
END
WHILE ##FETCH_STATUS=0
--FETCH NEXT FROM cursCol1 INTO #tablename
BEGIN
IF #dataType in ('varchar','char','nchar','nvarchar')
BEGIN
SET #stringData=#stringData+'''''''''+
isnull('+#colName+','''')+'''''',''+'
END
ELSE
BEGIN
SET #stringData=#stringData+'''''''''+
isnull(cast('+#colName+' as varchar(200)),''0'')+'''''',''+'
END
SET #string=#string+#colName+','
FETCH NEXT FROM cursCol INTO #colName ,#dataType
END
BEGIN
DECLARE #Query nvarchar(4000)
SET #query ='SELECT '''+substring(#string,0,len(#string)) + ')
VALUES(''+ ' + substring(#stringData,0,len(#stringData)-2)+'''+'')''
FROM '+#tableName
PRINT (#query)
CLOSE cursCol1
DEALLOCATE cursCol1
CLOSE cursCol
DEALLOCATE cursCol
END
END
GO
When executing the procedure I am only getting first value(Row) from name column in sys.tables.
I want it for all the rows in the sys.tables.
Query should take each table name one by one then execute the query for every table so that I can get insert statement for all the tables.
Thanks in advance .

Answer 1

Please try using cursor to get name, cursCol1 Should be closed at last after cursCol. FETCH NEXT is also missing for cursCol1
CREATE PROC [dbo].[usp_InsertGenerator]
AS
BEGIN
DECLARE #tablename varchar(max)
DECLARE #tbl table (insertVal varchar(max))
DECLARE cursCol1 CURSOR FOR
SELECT name FROM sys.tables
OPEN cursCol1
FETCH NEXT FROM cursCol1 INTO #tablename
WHILE ##FETCH_STATUS=0
begin
DECLARE cursCol CURSOR FOR
SELECT column_name, data_type
FROM information_schema.columns
WHERE table_name = #tableName
OPEN cursCol
DECLARE #string nvarchar(3000)
DECLARE #stringData nvarchar(3000)
DECLARE #dataType nvarchar(1000)
SET #string='INSERT '+#tableName+'('
SET #stringData=''
DECLARE #colName nvarchar(50)
FETCH NEXT FROM cursCol INTO #colName,#dataType
IF ##fetch_status<>0
BEGIN
PRINT 'Table '+#tableName+' not found, processing skipped.'
FETCH NEXT FROM cursCol1 INTO #tablename
CLOSE curscol
DEALLOCATE curscol
RETURN
END
WHILE ##FETCH_STATUS=0
--FETCH NEXT FROM cursCol1 INTO #tablename
BEGIN
IF #dataType in ('varchar','char','nchar','nvarchar')
BEGIN
SET #stringData=#stringData+'''''''''+
isnull('+#colName+','''')+'''''',''+'
END
ELSE
BEGIN
SET #stringData=#stringData+'''''''''+
isnull(cast('+#colName+' as varchar(200)),''0'')+'''''',''+'
END
SET #string=#string+#colName+','
FETCH NEXT FROM cursCol INTO #colName ,#dataType
END
BEGIN
DECLARE #Query nvarchar(4000)
SET #query ='SELECT '''+substring(#string,0,len(#string)) + ')
VALUES(''+ ' + substring(#stringData,0,len(#stringData)-2)+'''+'')''
FROM '+#tableName
INSERT INTO #tbl (insertVal) EXEC (#query)
-- PRINT (#query)
END
CLOSE cursCol
DEALLOCATE cursCol
FETCH NEXT FROM cursCol1 INTO #tablename
END
CLOSE cursCol1
DEALLOCATE cursCol1
SELECT * FROM #tbl
END