DevExpress.Xtra.SQLServer
Execute SQL Text and return DataTable
Execute SQL Text and return DataTable (Async)
Execute Stored Procedure and return DataTable
Execute Stored Procedure and return DataTable (Async)
Execute SQL Text and return DataRow
Execute SQL Text and return DataRow (Async)
Execute Stored Procedure and return DataRow
Execute Stored Procedure and return DataRow (Async)
Execute Scalar
Execute Scalar (Async)
Execute Stored Procedure Scalar
Execute Stored Procedure Scalar (Async)
Execute Integer
Execute Integer (Async)
Execute Stored Procedure Integer
Execute Stored Procedure Integer (Async)
Execute Decimal
Execute Decimal (Async)
Execute Stored Procedure Decimal
Execute Stored Procedure Decimal (Async)
Execute String
Execute String (Async)
Execute Stored Procedure String
Execute Stored Procedure String (Async)
Execute Date
Execute Date (Async)
Execute Stored Procedure Date
Execute Stored Procedure Date (Async)
Execute Boolean
Execute Boolean (Async)
Execute Stored Procedure Boolean
Execute Stored Procedure Boolean (Async)
Execute Non Query
Execute Non Query (Async)
Execute Stored Procedure Non Query
Execute Stored Procedure Non Query (Async)
Execute Insert
Execute Insert (Async)
Execute Stored Procedure Insert
Execute Stored Procedure Insert (Async)
Execute Update
Execute Update (Async)
Execute Stored Procedure Update
Execute Stored Procedure Update (Async)
Execute Delete
Execute Delete (Async)
Execute Stored Procedure Delete
Execute Stored Procedure Delete (Async)
Execute Exists
Execute Exists (Async)
Execute Stored Procedure Exists
Execute Stored Procedure Exists (Async)
Execute Count
Execute Count (Async)
Execute Stored Procedure Count
Execute Stored Procedure Count (Async)
Execute Max
Execute Max (Async)
Execute Stored Procedure Max
Execute Stored Procedure Max (Async)
Execute Min
Execute Min (Async)
Execute Stored Procedure Min
Execute Stored Procedure Min (Async)
Execute Sum
Execute Sum (Async)
Execute Stored Procedure Sum
Execute Stored Procedure Sum (Async)
Execute Avg
Execute Avg (Async)
Execute Stored Procedure Avg
Execute Stored Procedure Avg (Async)
SQL Parameter Builder
Returns the cached ResourceManager instance used by this class.
Overrides the current thread's CurrentUICulture property for all
resource lookups using this strongly typed resource class.
A strongly-typed resource class, for looking up localized strings, etc.
DataTable ko JSON string mein convert karta hai.
DataTable ko XML string mein convert karta hai.
DataTable ko ek simple HTML table string mein convert karta hai.
MULTI-DATABASE SWITCH:
Default SQL Server hai. Doosre DB ke liye apni project mein us provider
ka NuGet package add karke, App start par ye line likhein:
DB.Factory = MySql.Data.MySqlClient.MySqlClientFactory.Instance ' MySQL
DB.Factory = Npgsql.NpgsqlFactory.Instance ' PostgreSQL
DB.Factory = System.Data.SQLite.SQLiteFactory.Instance ' SQLite
USAGE: DB.Begin() ... DB.Execute(...) ... DB.Commit() / DB.RollBack()
USAGE: DB.P("@Name", "Amit")
USAGE (Output Param): DB.P("@Total", DbType.Int32, 0, ParameterDirection.Output)
USAGE: Dim dt = DB.Table("SELECT * FROM tblUsers WHERE MobileNo=@M", DB.P("@M","9896217080"))
USAGE: Dim ds = DB.GetDataSet("SELECT * FROM tblUsers; SELECT * FROM tblOrders")
USAGE: Using rdr = DB.Reader("SELECT * FROM tblUsers") : While rdr.Read() ... End While : End Using
NOTE: Apna dedicated connection use karta hai; ambient DB.Begin() transaction
mein participate NAHI karta.
USAGE: DB.Execute("INSERT INTO tblUsers(Name,MobileNo) VALUES(@Name,@Mobile)", DB.P("@Name","Amit"), DB.P("@Mobile","9896217080"))
USAGE: DB.Exec("UPDATE tblUsers SET Active=1")
OUTPUT PARAM USAGE:
Dim outP = DB.P("@TotalCount", DbType.Int32, 0, ParameterDirection.Output)
DB.SP("spGetUserCount", outP)
Dim total As Integer = CInt(outP.Value)
USAGE: DB.BulkInsert("tblUsers", dt)
SQL Server par SqlBulkCopy (fast) - doosre providers par batched-loop fallback.
USAGE: DB.BulkUpdate("tblUsers", dt, "Id")
HONEST NOTE: row-by-row loop hai ek transaction ke andar - lakhon rows ke
liye staging-table + MERGE better hoga (V3 feature).
USAGE: Dim csvText = DB.Csv("SELECT * FROM tblUsers")
Excel CSV file ko seedha khol leta hai (double-click). True .xlsx binary
ke liye alag library chahiye (is version mein nahi hai).
USAGE: DB.InsertDict("tblUsers", New Dictionary(Of String, Object) From {{"Name","Amit"},{"MobileNo","9896217080"}})
USAGE: DB.UpdateDict("tblUsers", dict, "Id")
USAGE: DB.Upsert("tblUsers", dict, "Id") ' record ho to Update, nahi to Insert
HONEST: ye "check then insert/update" hai, native T-SQL MERGE nahi.
USAGE: Dim row = DB.GetById("tblUsers", "Id", 5)
USAGE: If DB.TableExists("tblUsers") Then
USAGE: If DB.ColumnExists("tblUsers","MobileNo") Then
USAGE: Dim tables = DB.GetTables()
USAGE: Dim cols = DB.GetColumns("tblUsers")
USAGE (SQL Server 2012+ / PostgreSQL):
DB.Page("SELECT * FROM tblUsers WHERE City=@C", "Name", 2, 20, DB.P("@C","Panipat"))
USAGE (MySQL syntax): DB.PageMySql("SELECT * FROM tblUsers", 2, 20)
USAGE: Dim dt = DB.CachedTable("SELECT * FROM tblStates", "states", 3600)
Baar-baar na badalne wali lookup tables (states, categories) ke liye useful.
USAGE: DB.RunScript(scriptText) ' "GO" apni line par - SSMS convention
USAGE: DB.RunScriptFile("C:\Scripts\Setup.sql")
USAGE: If DB.Ping() Then ... ' connection zinda hai ya nahi test karta hai
SQL SERVER SPECIFIC. MySQL: "SELECT VERSION()", PostgreSQL: "SELECT version()"
SQL SERVER SPECIFIC - active sessions dikhata hai
SQL SERVER SPECIFIC - kaun si session kisko block kar rahi hai
SQL SERVER SPECIFIC. MySQL: "SELECT LAST_INSERT_ID()", SQLite: "SELECT last_insert_rowid()",
PostgreSQL: INSERT ke sath "RETURNING id" clause use karna padta hai.
USAGE: Dim newId = DB.InsertAndGetId("tblUsers", dict) ' SQL Server specific
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KAAM: Koi bhi SELECT query ya SQL text chalao aur result DataTable me lo
USAGE (1 line):
Dim dt As DataTable = db.ExecuteQuery("SELECT * FROM Employees WHERE City='Delhi'")
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KAAM: Koi bhi INSERT / UPDATE / DELETE / DDL command chalao
USAGE (1 line):
Dim rows As Integer = db.ExecuteNonQuery("UPDATE Employees SET City='Noida' WHERE Id=5")
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KAAM: Jab ek hi value chahiye ho (jaise COUNT(*), MAX(Salary) etc.)
USAGE (1 line):
Dim total As Object = db.ExecuteScalar("SELECT COUNT(*) FROM Employees")
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KAAM: Koi bhi Stored Procedure call karo, chahe SELECT wali ho ya
INSERT/UPDATE/DELETE wali
USAGE (1-2 lines):
Dim p() As SqlParameter = {New SqlParameter("@Id", 5)}
Dim dt As DataTable = db.ExecuteStoredProcedure("sp_GetEmployeeById", p)
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KAAM: Stored Procedure jo sirf INSERT/UPDATE/DELETE karti hai (no result set)
USAGE (1-2 lines):
Dim p() As SqlParameter = {New SqlParameter("@Id", 5), New SqlParameter("@City", "Delhi")}
db.ExecuteStoredProcedureNonQuery("sp_UpdateCity", p)
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KAAM: Kisi bhi Object ko table me INSERT kar do (SQL likhne ki zaroorat nahi)
USAGE (1 line):
db.Insert("Employees", emp) ' emp ek class object hai (Name, City, Salary props)
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KAAM: Table se record(s) delete karo - kisi bhi condition pe
USAGE (1 line):
db.Delete("Employees", "Id=5")
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KAAM: Table se records select karo - condition optional hai
USAGE (1 line):
Dim dt As DataTable = db.Select("Employees", "City='Delhi'")
Dim dtAll As DataTable = db.Select("Employees") ' bina condition - sab records
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