Dialysis is a treatment that does some of the things done by healthy kidneys. It is needed when your own kidneys can no longer take care of your body's needs. When is dialysis needed? You need dialysis when you develop end stage kidney failure --usually by the time you lose about 85 to 90 percent of your kidney function and have a GFR of <15.
1. A table is perceived as a 2-dimensional structure composed of rows and columns 2. each table row(tuple) represents a single entity occurrence within an entity set 3. each table column represents an attribute and each column has a distinct name 4. each intersection of a row and column represents a single data value 5. all values in a column must conform to the same data format 6. each column has a specific range of values known as the attribute domain
Click the left border of the table row. The following selection arrow appears to indicate that clicking selects the row. You can click the first cell in the table row, and then press CTRL+SHIFT+RIGHT ARROW. All table rows and columns. Click the upper-left corner of the table. The following selection arrow appears to indicate that clicking selects the table data in the entire table. Click the upper-left corner of the table twice to select the entire table, including the table headers. You can also click anywhere in the table, and then press CTRL+A to select the table data in the entire table, or you can click the top-left most cell in the table, and then press CTRL+SHIFT+END.