[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
Microsoft SQL Server database connector.
Source position: mssqlconn.pp line 57
type TMSSQLConnection = class(TSQLConnection) |
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public |
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constructor Create(); override; |
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Create a new instance of TMSSQLConnection. |
function GetConnectionInfo(); override; |
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Return some information about the connection. |
procedure CreateDB; override; |
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Create a new MS SQL database. |
procedure DropDB; override; |
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Drop a MS SQL database. |
published |
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property Password: string; |
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property Transaction: TSQLTransaction; |
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Default transaction. |
property UserName: string; |
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property CharSet: string; |
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property HostName: string; |
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Host and optionally port or instance. |
property Connected: Boolean; |
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Is the connection active. |
property Role: string; |
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Role for user. |
property DatabaseName: string; |
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property KeepConnection: Boolean; |
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Keep connection alive. |
property LoginPrompt: Boolean; |
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Show login prompt. |
property OnLogin: TLoginEvent; |
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Called when logging in. |
end; |
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Microsoft SQL Server database connector. |
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An abstract class representing a connection to a SQL Database. |
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Base class for connecting a FreePascal application to an external Database engine. |
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Abstract class for connections to a server. |
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Connector to Microsoft SQL Server databases.
Requirements:
MS SQL Server Client Library is required (ntwdblib.dll)
- or -
FreeTDS (dblib.dll)
Older FreeTDS libraries may require freetds.conf: (http://www.freetds.org/userguide/freetdsconf.htm)
[global]
tds version = 7.1
client charset = UTF-8
port = 1433 or instance = ... (optional)
dump file = freetds.log (optional)
text size = 2147483647 (optional)
Known problems:
- CHAR/VARCHAR data truncated to column length when encoding to UTF-8 (use NCHAR/NVARCHAR instead or CAST char/varchar to nchar/nvarchar)
- Multiple result sets (MARS) are not supported (for example when SP returns more than 1 result set only 1st is processed)
- DB-Library error 10038 "Results Pending": set TSQLQuery.PacketRecords=-1 to fetch all pending rows
- BLOB data (IMAGE/TEXT columns) larger than 16MB are truncated to 16MB: (set TMSSQLConnection.Params: 'TEXTSIZE=2147483647' or execute 'SET TEXTSIZE 2147483647')