SqlStatementCollection Class

In This Topic

Represents collection of statements that constitute SQL script.

Syntax

Visual Basic
C#

'Declaration
 
Public Class SqlStatementCollection 
   Inherits System.Collections.CollectionBase
   Implements System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList

public class SqlStatementCollection : System.Collections.CollectionBase, System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList

Remarks

The collection is read-only. You can not add your own SqlStatement objects or remove them.

SqlStatementCollection is used to execute statements in a script one by one. To populate the collection with data use DbScript.Statements property.

Example

This sample shows how to retrieve collection of statements that make up the script and execute them one by one.

csharp

string script =
  "DROP TABLE IF EXISTS DEPT;"+
  "CREATE TABLE DEPT ("+
  "  DEPTNO INT PRIMARY KEY,"+
  "  DNAME VARCHAR(14),"+
  "  LOC VARCHAR(13)"+
  ") TYPE = InnoDB;"+
  "INSERT INTO DEPT VALUES (10,'ACCOUNTING','NEW YORK');"+
  "INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');"+
  "INSERT INTO DEPT VALUES (30,'SALES','CHICAGO');"+
  "INSERT INTO DEPT VALUES (40,'OPERATIONS','BOSTON');"+
  "SELECT * FROM DEPT";
MySqlConnection myConn = new MySqlConnection("User Id=root;Host=localhost;Database=Test");
MySqlScript myScript = new MySqlScript(script,myConn);
SqlStatementCollection myColl = myScript.Statements;
IDataReader myReader;
myConn.Open();
foreach (SqlStatement myStatement in myColl)
{
  Console.WriteLine(myStatement.Text);
  try
  {
    myReader = myStatement.Execute();
    Console.WriteLine("  Records affected " + myReader.RecordsAffected); 
    while (myReader.Read()) 
    { 
      Console.WriteLine(myReader.GetString(0)); 
    } 
    myReader.Close(); 
    Console.WriteLine();
  }
  catch
  {
    Console.WriteLine("  Failed");
  }
}
myConn.Close();

Visual Basic

Dim script As String = _
  "DROP TABLE IF EXISTS DEPT;" + _
  "CREATE TABLE DEPT (" + _
  "  DEPTNO INT PRIMARY KEY," + _
  "  DNAME VARCHAR(14)," + _
  "  LOC VARCHAR(13)" + _
  ") TYPE = InnoDB;" + _
    "INSERT INTO DEPT VALUES (10,'ACCOUNTING','NEW YORK');" + _
    "INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');" + _
    "INSERT INTO DEPT VALUES (30,'SALES','CHICAGO');" + _
    "INSERT INTO DEPT VALUES (40,'OPERATIONS','BOSTON');" + _
    "SELECT * FROM DEPT"
Dim myConn As MySqlConnection = New MySqlConnection("User Id=root;Host=localhost;Database=Test")
Dim myScript As MySqlScript = New MySqlScript(script, myConn)
Dim myColl As SqlStatementCollection = myScript.Statements
Dim myReader As IDataReader
myConn.Open()
For Each myStatement As SqlStatement In myColl
  Console.WriteLine(myStatement.Text)
  Try
    myReader = myStatement.Execute()
    Console.WriteLine("  Records affected " & myReader.RecordsAffected)
    While myReader.Read()
      Console.WriteLine(myReader.GetString(0))
    End While
    myReader.Close()
    Console.WriteLine()
  Catch ex As Exception
    Console.WriteLine("  Failed")
  End Try
Next myStatement
myConn.Close()

Inheritance Hierarchy

System.Object
System.Collections.CollectionBase
Devart.Common.SqlStatementCollection

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

SqlStatementCollection Members
Devart.Common Namespace
Statements Property

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