PgSqlSelectStatement Class

In This Topic

Represents PostgreSQL SELECT statement.

Syntax

Visual Basic
C#

'Declaration
 
Public NotInheritable Class PgSqlSelectStatement 
   Inherits Devart.Common.SelectStatement

public sealed class PgSqlSelectStatement : Devart.Common.SelectStatement

Remarks

Use PgSqlSelectStatement to construct a SELECT statement in run time. The PgSqlSelectStatement provides an object-oriented interface for manipulating each part of SQL SELECT statements. Use the ToString method to retrieve text of the constructed statement.

Example

The following example demonstrates how to use the PgSqlSelectStatement class.

csharp

PgSqlSelectStatement stmt = new PgSqlSelectStatement();

stmt.Columns.Add(new SelectColumn("test", "td", "dname", "Department"));
stmt.Columns.Add(new SelectColumn("", "td", "loc", "Location"));
stmt.Columns.Add(new SelectColumn("", "te", "ename", "Name"));

stmt.Tables.Add(new SelectTable("test", "dept", "td"));
stmt.Tables.Add(new SelectTable("", "emp", "te"));

stmt.GroupBy.Add(new SelectColumn("", "te", "empno", ""));
stmt.OrderBy.Add(new SelectColumn("", "te", "ename", ""));

Visual Basic

Dim stmt As New PgSqlSelectStatement

stmt.Columns.Add(New SelectColumn("test", "td", "dname", "Department"))
stmt.Columns.Add(New SelectColumn("", "td", "loc", "Location"))
stmt.Columns.Add(New SelectColumn("", "te", "ename", "Name"))

stmt.Tables.Add(New SelectTable("test", "dept", "td"))
stmt.Tables.Add(New SelectTable("", "emp", "te"))

stmt.GroupBy.Add(New SelectColumn("", "te", "empno", ""))
stmt.OrderBy.Add(New SelectColumn("", "te", "ename", ""))

Inheritance Hierarchy

System.Object
Devart.Common.SelectStatement
Devart.Data.PostgreSql.PgSqlSelectStatement

Reference

PgSqlSelectStatement Members
Devart.Data.PostgreSql Namespace

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