Installshield SQL数据库操作示例

<pre>

//第一部分
prototype BOOL DB_ExecuteSQLScript(STRING, STRING, STRING, STRING, STRING);
prototype BOOL DB_DoesDatabaseExist(STRING, STRING, STRING, STRING, STRING);
prototype BOOL DB_CheckConnection(STRING, STRING, STRING, STRING);
prototype BOOL DB_CreateDatabase(STRING, STRING, STRING, STRING, STRING);
prototype BOOL DB_AttachDatabase(STRING, STRING, STRING, STRING, STRING, STRING);
prototype BOOL DB_AddLogin(STRING, STRING, STRING, STRING,STRING, STRING);
prototype BOOL DB_DropLoginNoException(STRING, STRING, STRING, STRING,STRING, STRING);
prototype BOOL DB_GrantDBAccess(STRING, STRING, STRING, STRING,STRING, STRING);
prototype BOOL DB_AddRoleMember(STRING, STRING, STRING, STRING,STRING, STRING);
prototype BOOL DB_AddSrvRoleMember(STRING, STRING, STRING, STRING,STRING, STRING);
prototype BOOL DB_ChangePassword(STRING, STRING, STRING, STRING,STRING, STRING);
prototype BOOL DB_GetInstances(BYREF LIST);
///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_DoesDatabaseExist
//
//Purpose: This function will determine whether a given database exists.
//
// Arguments: svServerName - The name of the SQL server to run the script on
//svDatabaseName - The name of the SQL database to run the script on
//svDriver - ADO requires this, but for SQL server you just send in "SQL Server"
//svUserName - The system account for SQL server
//svUserPassword - The password for the system account
//
//Usage:
//if (DB_DoesDatabaseExist("SQLServer", "MyDatabase", "SQL Server", "sa", "saPassword") = FALSE) then
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_DoesDatabaseExist(svServerName, svDatabaseName, svDriver, svUserName, svUserPassword)
OBJECT pADOConnObj, pADORecordSetObj;
STRING szADOConnObjID, szADORecordSetObjID, szConnString, szSQL;
BOOL bExists;
begin
bExists = FALSE;
try
// Create ADO Connection Object to connect to the SQL server
szADOConnObjID = "ADODB.Connection";
set pADOConnObj = CreateObject(szADOConnObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + svDriver + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svUserName + ";";
szConnString = szConnString + "pwd=" + svUserPassword + ";";
szConnString = szConnString + "database=master";

// Open the ADO Connection
pADOConnObj.Open(szConnString);

// Create ADO Recordset object for the return
szADORecordSetObjID = "ADODB.Recordset";
set pADORecordSetObj = CreateObject(szADORecordSetObjID);

// Set some ADO Recordset properties
pADORecordSetObj.CursorType = 3;
pADORecordSetObj.ActiveConnection = pADOConnObj;

// Create the SQL string to retrieve the database if it exists
szSQL = "Select name from sysdatabases where name='" + svDatabaseName + "'";

// Use the recordset to see if the database exists
pADORecordSetObj.Open(szSQL);
if (pADORecordSetObj.RecordCount = 1) then
bExists = TRUE;
endif;
catch
ErrorHandler(Err.Number,"DB_DoesDatabaseExist",Err.Description,WARNING);
set pADOConnObj = NOTHING;
set pADORecordSetObj = NOTHING;

return FALSE;
endcatch;
set pADOConnObj = NOTHING;
set pADORecordSetObj = NOTHING;

return bExists;
end;

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_CheckConnection
//
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_CheckConnection(svServerName, svDriver, svUserName, svUserPassword)
OBJECT pADOConnObj, pADORecordSetObj;
STRING szADOConnObjID, szADORecordSetObjID, szConnString, szSQL;
BOOL bExists;
begin
bExists = FALSE;
try
// Create ADO Connection Object to connect to the SQL server
szADOConnObjID = "ADODB.Connection";
set pADOConnObj = CreateObject(szADOConnObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + svDriver + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svUserName + ";";
szConnString = szConnString + "pwd=" + svUserPassword + ";";
szConnString = szConnString + "database=master";

// Open the ADO Connection
pADOConnObj.Open(szConnString);

// Create ADO Recordset object for the return
szADORecordSetObjID = "ADODB.Recordset";
set pADORecordSetObj = CreateObject(szADORecordSetObjID);

// Set some ADO Recordset properties
pADORecordSetObj.CursorType = 3;
pADORecordSetObj.ActiveConnection = pADOConnObj;

// Create the SQL string to retrieve the database if it exists
szSQL = "Select name from sysdatabases where name='" + "master" + "'";

// Use the recordset to see if the database exists
pADORecordSetObj.Open(szSQL);
if (pADORecordSetObj.RecordCount = 1) then
bExists = TRUE;
endif;
catch
bExists = FALSE;
//Clean up
set pADOConnObj = NOTHING;
set pADORecordSetObj = NOTHING;

endcatch;
set pADOConnObj = NOTHING;
set pADORecordSetObj = NOTHING;
return bExists;
end;
///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_CreateDatabase
//
//Purpose: This function will create a new database.
//
// Arguments: svServerName - The name of the SQL server to run the script on
//svDatabaseName - The name of the SQL database to run the script on
//svDriver - ADO requires this, but for SQL server you just send in "SQL Server"
//svUserName - The system account for SQL server
//svUserPassword - The password for the system account
//
//Usage:
//if (DB_CreateDatabase("SQLServer", "MyDatabase", "SQL Server", "sa", "saPassword") = FALSE) then
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_CreateDatabase(svServerName, svDatabaseName, svDriver, svUserName, svUserPassword)
STRING szADOCommObjID, szADOObjID, szConnSting;
OBJECT pADOObj, pADOCommObj;
begin
try
// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnSting = "driver={" + svDriver + "};";
szConnSting = szConnSting + "server=" + svServerName + ";";
szConnSting = szConnSting + "uid=" + svUserName + ";";
szConnSting = szConnSting + "pwd=" + svUserPassword;

// Open the ADO Connection
pADOObj.Open(szConnSting);

// Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to create the database
pADOCommObj.CommandText = "Create database " + svDatabaseName;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_CreateDatabase",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;

//第二部分

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_ExecuteSQLScript
//
//Purpose: This function will execute a SQL script.
//
// Arguments: svServerName - The name of the SQL server to run the script on
//svDatabaseName - The name of the SQL database to run the script on
//svDriver - ADO requires this, but for SQL server you just send in "SQL Server"
//svUserName - The system account for SQL server
//svUserPassword - The password for the system account
//svScriptFile - A fully qualified path to a SQL script file
//
//Usage:
//DB_ExecuteSQLScript("SQLServer", "MyDatabase", "SQL Server", "sa", "saPassword", "C:\Scripts\tables.sql")
//
//Notes:You could change this function to accept the script as a string
//instead of the file.With a file, you can add the scripts
//as files in the installation, putting them in a directory.
//This would allow them to be reused later, or they can just be
//deleted after each script is run.
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_ExecuteSQLScript(svServerName, svDatabaseName, svUserName, svUserPassword, svScriptFile)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svLine, szConnString, szSQL, svString;
NUMBER nResult;
LIST listID;
begin
try
// Create an empty string list.
listID = ListCreate (STRINGLIST);

// Read the SQL script file into the list
if (ListReadFromFile(listID, svScriptFile) < 0) then // read list from file
MessageBox ("ERROR: Unable to open SQL script: " + svScriptFile + ".", SEVERE);
nError = 1;
return nError;
endif;

// Go through each list item and add it to a string (which will then hold the script)
szSQL = "";
nResult = ListGetFirstString (listID, svString);
while (nResult = 0)
szSQL = szSQL + " " + svString;
nResult = ListGetNextString (listID, svString);
endwhile;

// Be good and clean up your trash
ListDestroy(listID);

// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svUserName + ";";
szConnString = szConnString + "pwd=" + svUserPassword + ";";
szConnString = szConnString + "database=" + svDatabaseName;

// Open the ADO Connection
pADOObj.Open(szConnString);

// Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = szSQL;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_ExecuteSQLScript",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_AttachDatabase
//
//Purpose: This function will attach a database to a server.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_AttachDatabase(svServerName, svDatabaseName,svDatabasePath,svLogPath, svUserName, svUserPassword)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try
// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svUserName + ";";
szConnString = szConnString + "pwd=" + svUserPassword + ";";
szConnString = szConnString + "database=" + "MASTER";

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_attach_db '"
+ svDatabaseName
+ "','"
+ svDatabasePath
+ "','"
+ svLogPath
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_AttachDatabase",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;
return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_AddLogin
//
//Purpose: This function will add a login to a server.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_AddLogin(svServerName,svDatabaseName,
svSAUsername,svSAPassword,svUserName, svUserPassword)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try

// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svSAUsername + ";";
szConnString = szConnString + "pwd=" + svSAPassword + ";";
szConnString = szConnString + "database=" + "MASTER";

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_addlogin '"
+ svUserName
+ "','"
+ svUserPassword
+ "','"
+ svDatabaseName
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_AddLogin",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;

//第三部分

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_AddSrvRoleMember
//
//Purpose: This function will add a login to a server.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_AddSrvRoleMember(svServerName,svDatabaseName,
svSAUsername,svSAPassword,svUserName, svRole)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try

// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svSAUsername + ";";
szConnString = szConnString + "pwd=" + svSAPassword + ";";
szConnString = szConnString + "database=" + "MASTER";

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_addsrvrolemember '"
+ svUserName
+ "','"
+ svRole
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_AddSrvRoleMember",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_DropLoginNoException
//
//Purpose: This function will drop a login, but not throw an exception if it
//fails.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_DropLoginNoException(svServerName,svDatabaseName,
svSAUsername,svSAPassword,svUserName, svUserPassword)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try

// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svSAUsername + ";";
szConnString = szConnString + "pwd=" + svSAPassword + ";";
szConnString = szConnString + "database=" + svDatabaseName;

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_droplogin '"
+ svUserName
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
//No exception thrown for this function... this is a try only
/*
ErrorHandler(Err.Number,"DB_AddLogin",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
*/
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;
///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_GrantDBAccess
//
//Purpose: This function grant access to a database.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_GrantDBAccess(svServerName,svDatabaseName,
svSAUsername,svSAPassword,svUserName, svDBUserName)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try
// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svSAUsername + ";";
szConnString = szConnString + "pwd=" + svSAPassword + ";";
szConnString = szConnString + "database=" + svDatabaseName;

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_grantdbaccess N'"
+ svUserName
+ "',N'"
+ svDBUserName
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_GrantDBAccess",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;

///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_AddRoleMember
//
//Purpose: This function grant access to a database.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_AddRoleMember(svServerName,svDatabaseName,
svSAUsername,svSAPassword, svRole,svUserName)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try
// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svSAUsername + ";";
szConnString = szConnString + "pwd=" + svSAPassword + ";";
szConnString = szConnString + "database=" + svDatabaseName;

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_addrolemember N'"
+ svRole
+ "',N'"
+ svUserName
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_AddRoleMember",Err.Description,WARNING);
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return FALSE;
endcatch;
set pADOObj = NOTHING;
set pADOCommObj = NOTHING;

return TRUE;
end;
///////////////////////////////////////////////////////////////////////////////
//
//Function: DB_ChangePassword
//
//Purpose: This function changes a users password.
//
// Arguments:
//
//Usage:
//
//Notes:
//
///////////////////////////////////////////////////////////////////////////////
function BOOL DB_ChangePassword(svServerName,
svSAUsername,svSAPassword, svUserName,svOldPass,svNewPass)
OBJECT pADOObj, pADOCommObj;
STRING szADOObjID, szADOCommObjID;
STRING svCommand, szConnString, szSQL, svString;
NUMBER nResult;
begin
try
//Fix NULLS
if svOldPass="" then
svOldPass="NULL";
endif;
if svNewPass="" then
svNewPass="NULL";
endif;

// Create ADO Connection Object to connect to the SQL server
szADOObjID = "ADODB.Connection";
set pADOObj = CreateObject(szADOObjID);

// Create the SQL string to complete the connection
szConnString = "driver={" + "SQL Server" + "};";
szConnString = szConnString + "server=" + svServerName + ";";
szConnString = szConnString + "uid=" + svSAUsername + ";";
szConnString = szConnString + "pwd=" + svSAPassword + ";";
szConnString = szConnString + "database=" + "MASTER";

// Open the ADO Connection
pADOObj.Open(szConnString);

svCommand="sp_password "
+ svOldPass
+ ","
+ svNewPass
+ ",'"
+ svUserName
+ "'"
;

//Create the ADO Command object to execute the script
szADOCommObjID = "ADODB.Command";
set pADOCommObj = CreateObject(szADOCommObjID);
pADOCommObj.ActiveConnection = pADOObj;

// Execute the call to run the script
pADOCommObj.CommandText = svCommand;
pADOCommObj.Execute();
catch
ErrorHandler(Err.Number,"DB_ChangePassword",Err.Description,WARNING);
set pADOCommObj = NOTHING;
set pADOObj = NOTHING;

return FALSE;
endcatch;
set pADOCommObj = NOTHING;
set pADOObj = NOTHING;

return TRUE;
end;

////////////////////////////////////////////////////////////////////////
//Function:BOOL DB_GetInstances()
//Description: Checks for an Instance of SQL Server, returns a list of
//of instances if true.
//
//Created By:BrianR
//Created Date: 11-12-2002
////////////////////////////////////////////////////////////////////////
function BOOL DB_GetInstances(lInstances)
STRING szKey,szInstanceName;
NUMBER nRet;
begin
//Set default reg root
RegDBSetDefaultRoot(HKEY_LOCAL_MACHINE);
szKey = "SOFTWARE\\MICROSOFT\\Microsoft SQL Server";

//If key isnt there... fail
if RegDBKeyExist(szKey) != 1 then
//fail
return FALSE;
endif;

//Create INSTANCE Lists
szInstanceName="Test1";
ListAddString(lInstances,szInstanceName,AFTER);
szInstanceName="Test2";
ListAddString(lInstances,szInstanceName,AFTER);

//Return
if ListCount(lInstances)!=0 then
return ListCount(lInstances);
else
return FALSE;
endif;
end;

</pre>