Execute Method (SqlStatement)
Executes the statement and returns result set.
Return Value
Result set returned by the statement execution.
This sample shows how to retrieve collection of statements that make up the script and execute them one by one.
string script =
"DROP TABLE DEPT;"+
"CREATE TABLE DEPT ("+
" DEPTNO INT PRIMARY KEY,"+
" DNAME VARCHAR(14),"+
" LOC VARCHAR(13)"+
")WITH OIDS;"+
"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";
PgSqlConnection pgConn = new PgSqlConnection(
"host=server;database=test;user id=postgres;");
PgSqlScript pgScript = new PgSqlScript(script,pgConn);
SqlStatementCollection pgColl = pgScript.Statements;
IDataReader pgReader;
pgConn.Open();
foreach (SqlStatement pgStatement in pgColl)
{
Console.WriteLine(pgStatement.Text);
try
{
pgReader = pgStatement.Execute();
Console.WriteLine(" Records affected " + pgReader.RecordsAffected);
while (pgReader.Read())
{
Console.WriteLine(pgReader.GetString(0));
}
pgReader.Close();
Console.WriteLine();
}
catch
{
Console.WriteLine(" Failed");
}
}
pgConn.Close();
Dim script As String = _
"DROP TABLE DEPT;" + _
"CREATE TABLE DEPT (" + _
" DEPTNO INT PRIMARY KEY," + _
" DNAME VARCHAR(14)," + _
" LOC VARCHAR(13)" + _
")WITH OIDS;" + _
"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 pgConn As PgSqlConnection = New PgSqlConnection( _
"host=server;database=test;user id=postgres;")
Dim pgScript As PgSqlScript = New PgSqlScript(script, pgConn)
Dim pgColl As SqlStatementCollection = pgScript.Statements
Dim pgReader As IDataReader
pgConn.Open()
For Each pgStatement As SqlStatement In pgColl
Console.WriteLine(pgStatement.Text)
Try
pgReader = pgStatement.Execute()
Console.WriteLine(" Records affected " & pgReader.RecordsAffected)
While pgReader.Read()
Console.WriteLine(pgReader.GetString(0))
End While
pgReader.Close()
Console.WriteLine()
Catch ex As Exception
Console.WriteLine(" Failed")
End Try
Next pgStatement
pgConn.Close()
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