How to create a Stored Procedure in SQL Server? - sql

Question

I was creating a Stored Procedure for validation based on not allowing special characters in LeaveTypeText, for my project that I am learning now. And I want LeaveTypeText to not allow duplicate values and update LeaveTypeKey based on LeaveTypeText by removing space in between two characters.
How can I correct this?
ALTER PROCEDURE [dbo].[PreSaveAnd_AfterSave_Validation] (
#FBFormId INT
,#PkId INT
,#TF_ProjectId INT
,#UserDetails NVARCHAR(MAX)
,#IsPostSave BIT
,#ContactId INT
,#Who NVARCHAR(100)
,#RoleId INT
,#Culture NVARCHAR(200)
)
AS
BEGIN
DECLARE #GlobalDateFormatCode INT
DECLARE #ErrorMsg NVARCHAR(Max)
SELECT #GlobalDateFormatCode = dbo.TF_FN_GetCurrentDateFormat()
IF ISNULL(#IsPostSave, 0) = 0
BEGIN
DECLARE #ParaMeterTable TABLE (
Id INT IDENTITY(1, 1) PRIMARY KEY
,ParameterName NVARCHAR(MAX)
,ParameterValue NVARCHAR(MAX)
)
INSERT INTO #ParaMeterTable (
ParameterName
,ParameterValue
)
SELECT LTRIM(LEFT(Value, CHARINDEX('=', Value, 0) - 1)) AS ParameterName
,LTRIM(SUBSTRING(Value, CHARINDEX('=', Value, 0) + 1, LEN(Value))) AS ParameterValue
FROM dbo.TF_FN_Split(#UserDetails, '||')
WHERE ISNULl(Value, '') <> ''
--SELECT * FROM #ParaMeterTable
DECLARE #LeaveTypeText NVARCHAR(1000)
DECLARE #LeaveTypeKey NVARCHAR(1000)
--SELECT #LeaveTypeText = ParameterValue
--FROM #ParaMeterTable
--WHERE ParameterName LIKE '#LeaveTypeText%'
--select #LeaveTypeKey = LeaveTypeKey from DBO.Master_LeaveType_Sample
--SELECT #LeaveTypeText
SET #ErrorMsg = ' "Leave Type Key" field does not allow Special characters '
--Validate Here
IF EXISTS (#LeaveTypeKey like '%$%')
BEGIN
SELECT 0 AS IsValid
,#ErrorMsg AS [ErrorMessage]
END
IF (ISNULL(#ErrorMsg, '') != '')
BEGIN
SELECT 0 AS IsValid
,#ErrorMsg AS [ErrorMessage]
END
ELSE
BEGIN
SELECT 1 IsValid
,dbo.TF_FN_GetCultureMessage('TF_DB_Success', #ContactId, #Who, #RoleId, #Culture) AS [ErrorMessage]
END
END
ELSE IF ISNULL(#IsPostSave, 0) = 1
BEGIN
-- Post Save Logic
UPDATE DBO.Master_LeaveType_Sample
SET LeaveTypeKey = Replace(ParameterValue, ' ', '')
FROM DBO.Master_LeaveType_Sample
WHERE LeaveTypeText = ParameterValue
SELECT 1 IsValid
,dbo.TF_FN_GetCultureMessage('TF_DB_Success', #ContactId, #Who, #RoleId, #Culture) AS [ErrorMessage]
END
END