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Hướng dẫn học Microsoft SQL Server 2008 part 89

Các nhà quản lý nhiều tập tin cấu hình được liệt kê ở đây: ■ phẳng Tập tin: chiếu một tập tin văn bản như thể nó là một bảng, với các tùy chọn miền địa phương và tiêu đề. Các tập tin có thể ở một trong bốn định dạng: ■ phân cách: Tập tin dữ liệu được tách ra theo cột (ví dụ, dấu phẩy) và dấu phân cách hàng (ví dụ, {CR}} {LF). to adjust names and locations for specific target servers. UNC is a method of identifying a path so that it can be accessed from anywhere. | PartV Data Connectivity to adjust names and locations for specific target servers. UNC is a method of identifying a path so that it can be accessed from anywhere on the network a package may be run it takes the form of servername sharename path file.ext. The many file configuration managers are listed here Flat File Presents a text file as if it were a table with locale and header options. The file can be in one of four formats Delimited File data is separated by column e.g. comma and row delimiters e.g. cR LF . Fixed Width File data has known sizes without column or row delimiters. When opened in Notepad such a file appears as if all data is on a single line. Ragged Right File data is interpreted using fixed width for all columns except the last which is terminated by the row delimiter. Only files that use the delimited format are able to interpret zero-length strings as null. Multiple Flat Files Same as the Flat File connection manager but it allows multiple files to be selected either individually or using wildcards. Data then appears as a single large table to Integration Services elements. File Identifies a file or folder in the file system without specifying content. Such file pointers are used by several elements with Integration Services including the file system and FTP tasks for file manipulation and the Execute SQL task to identify the file from which a SQL statement should be read. The usage type Create file Existing file Create folder Existing folder ensures that the correct type of file pointer is created. Multiple Files Same as the file connection manager but it allows multiple files to be selected either individually or using wildcards Excel Identifies a file containing a group of cells that can be interpreted as a table 0 or 1 header rows data rows below without row or column gaps Special Beyond Database and File connection managers several other types are provided Cache Defines a data cache location. The cache is first populated using the Cache .