<p class="Paragraph"><help:paragraphinfo state="U" number="186" xmlns:help="http://openoffice.org/2000/help"/>The <span class="T1">Database</span> category may be confused with a database integrated in <help:productname xmlns:help="http://openoffice.org/2000/help">%PRODUCTNAME</help:productname>. However, there is no connection between a database in <help:productname xmlns:help="http://openoffice.org/2000/help">%PRODUCTNAME</help:productname> and the <span class="T1">Database</span> category in <help:productname xmlns:help="http://openoffice.org/2000/help">%PRODUCTNAME</help:productname> Calc.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="191" xmlns:help="http://openoffice.org/2000/help"/>The following data will be used in some of the function description examples:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="3" xmlns:help="http://openoffice.org/2000/help"/>The range A1:E10 lists the children invited to Joe's birthday party. The following information is given for each entry: column A shows the name, B the grade, then age in years, distance to school in meters and weight in kilograms.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="83" xmlns:help="http://openoffice.org/2000/help"/>The formula in cell B16 is =DCOUNT(A1:E10;A1:E10;A13:E14)</p>
<p class="Head3"><help:paragraphinfo state="U" number="192" xmlns:help="http://openoffice.org/2000/help"/>Database Function Parameters:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="84" xmlns:help="http://openoffice.org/2000/help"/>The following are the parameter definitions for all database functions:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="85" xmlns:help="http://openoffice.org/2000/help"/><span class="T1">Database</span> is the cell range defining the database.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="86" xmlns:help="http://openoffice.org/2000/help"/><span class="T1">Database field</span> indicates the database field used for further reference, if referencing is possible, in a database function. <help:to-be-embedded Eid="quotes" xmlns:help="http://openoffice.org/2000/help">To reference a column by means of the column header name, place quotation marks around the header name.</help:to-be-embedded></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="87" xmlns:help="http://openoffice.org/2000/help"/><span class="T1">Search criteria</span> is the cell range containing search criteria. If you write several criteria in one row they are connected by AND. If you write the criteria in different rows they are connected by OR. Empty cells in the search criteria range will be ignored.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="188" xmlns:help="http://openoffice.org/2000/help"/>Choose <help:link Id="66267" xmlns:help="http://openoffice.org/2000/help">Tools - Options - Spreadsheet - Calculate</help:link> to define how <help:productname xmlns:help="http://openoffice.org/2000/help">%PRODUCTNAME</help:productname> Calc acts when searching for identical entries.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="89" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DCOUNT counts the number of rows (records) in a database that match the specified search criteria and contain numerical values.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="187" xmlns:help="http://openoffice.org/2000/help"/>For the Database Field parameter you can enter the entire database or the number zero; however, the parameter cannot be empty. <help:embedded Id="66856" Eid="quotes" xmlns:help="http://openoffice.org/2000/help"/></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="93" xmlns:help="http://openoffice.org/2000/help"/>In the example above, we want to know how many children have to travel more than 600 meters to school. The result is to be stored in cell B16. Set the cursor in cell B16. Enter the formula =DCOUNT(A1:E10;A1:E10;A13:E14) in B16. Alternatively, enter =DCOUNT(A1:E10;0;A13:E14) (see syntax note above). The <span class="T1">AutoPilot: Functions</span> helps you to input ranges.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="94" xmlns:help="http://openoffice.org/2000/help"/><span class="T1">Database</span> is the range of data to be evaluated, including its headers: in this case A1:E10. <span class="T1">Database field</span> specifies the column for the search criteria: in this case, Distance to School (meters). <span class="T1">Search criteria</span> is the range where you can enter the search parameters: in this case, A13:E14.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="95" xmlns:help="http://openoffice.org/2000/help"/>To learn how many children in second grade are over 7 years of age, delete the entry >600 in cell D14 and enter "2" in cell B14 under Grade, and enter >7 in cell C14 to the right. The result is 2. Two children are in second grade and over 7 years of age. As both criteria are in the same row, they are connected by AND.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="98" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DCOUNTA counts the number of rows (records) in a database that match the specified search conditions, and contain numeric or alphanumeric values.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="102" xmlns:help="http://openoffice.org/2000/help"/>In the example above, you can search for the number of children whose name starts with an E or a subsequent letter. Edit the formula in B16 by inserting an A after the function name DCOUNT. Delete the old search criteria and enter >=E under <span class="T1">Name</span> in field A14. The result is 5. If you now delete all number values for Greta in row 8, the result changes to 4. Row 8 is no longer included in the count because it does not contain any values. The name Greta is text, not a value.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="105" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DGET returns the contents of the referenced cell in a database which matches the specified search criteria.</help:help-text> In case of an error, the function returns either #VALUE! for no row found, or Err502 for more than one cell found.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="109" xmlns:help="http://openoffice.org/2000/help"/>In the above example we want to determine what grade a child is in, whose name was entered in cell A14. The formula is entered in cell B16 and differs slightly from the earlier examples because only one column (one database field) can be entered for <span class="T1">Database field</span>. Enter the following formula:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="111" xmlns:help="http://openoffice.org/2000/help"/>Enter the name Frank in A14, and you see the result 2. Frank is in second grade. Enter "Age" instead of "Grade" and you will get Frank's age.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="112" xmlns:help="http://openoffice.org/2000/help"/>Or enter the value 11 in cell C14 only, and delete the other entries in this row. Edit the formula in B16 as follows:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="114" xmlns:help="http://openoffice.org/2000/help"/>Instead of the grade, the name is queried. The answer appears at once: Daniel is the only child aged 11.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="116" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DMAX returns the maximum content of a cell (field) in a database (all records) that matches the specified search conditions.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="120" xmlns:help="http://openoffice.org/2000/help"/>To find out how much the heaviest child in each grade weighed, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="122" xmlns:help="http://openoffice.org/2000/help"/>Under 'Grade', enter 1, 2, 3, and so on, one after the other. After entering a grade number, the weight of the heaviest child in that grade appears.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="124" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DMIN returns the minimum content of a cell (field) in a database that matches the specified search criteria.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="128" xmlns:help="http://openoffice.org/2000/help"/>To find the shortest distance to school for the children in each grade, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="129" xmlns:help="http://openoffice.org/2000/help"/>=DMIN(A1:E10;"Distance to School";A13:E14)</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="130" xmlns:help="http://openoffice.org/2000/help"/>In row 14, under Grade, enter 1, 2, 3, and so on, one after the other. The shortest distance to school for each grade appears.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="132" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DAVERAGE returns the average of the values of all cells (fields) in all rows (database records) that match the specified search criteria.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="136" xmlns:help="http://openoffice.org/2000/help"/>To find the average weight of all children of the same age, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="138" xmlns:help="http://openoffice.org/2000/help"/>In row 14, under Age, enter 7, 8, 9, and so on, one after the other. The average weight of all children of the same age appears.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="140" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DPRODUCT multiplies all cells of a data range where the cell contents match the search criteria.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="144" xmlns:help="http://openoffice.org/2000/help"/>With the birthday party example above, there is no meaningful application of this function.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="146" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DSTDEV calculates the standard deviation of a population based on a sample, using the numbers in a database column that match the given conditions.</help:help-text> The records are treated as a sample of data. That means that the children in the example represent a cross section of all children. Note that a representative result can not be obtained from a sample of less than one thousand.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="150" xmlns:help="http://openoffice.org/2000/help"/>To find the standard deviation of the weight for all children of the same age, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="152" xmlns:help="http://openoffice.org/2000/help"/>In row 14, under Age, enter 7, 8, 9, and so on, one after the other. The result shown is the standard deviation of the weight of all children of this age.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="154" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DSTDEVP calculates the standard deviation of a population based on all cells of a data range which match the search criteria.</help:help-text> The records from the example are treated as the whole population.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="158" xmlns:help="http://openoffice.org/2000/help"/>To find the standard deviation of the weight for all children of the same age at Joe's birthday party, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="160" xmlns:help="http://openoffice.org/2000/help"/>In row 14, under Age, enter 7, 8, 9, and so on, one after the other. The result is the standard deviation of the weight for all same-aged children whose weight was checked.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="162" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DSUM returns the total of all cells in a database field in all rows (records) that match the specified search criteria.</help:help-text></p>
<p class="Paragraph"><help:paragraphinfo state="U" number="166" xmlns:help="http://openoffice.org/2000/help"/>To find the length of the combined distance to school of all children at Joe's birthday party who are in second grade, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="167" xmlns:help="http://openoffice.org/2000/help"/>=DSUM(A1:E10;"Distance to School";A13:E14)</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="168" xmlns:help="http://openoffice.org/2000/help"/>Enter "2" in row 14 under "Grade". The sum (1950) of the distances to school of all the children who are in second grade is displayed.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="171" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DVAR returns the variance of all cells of a database field in all records that match the specified search criteria.</help:help-text> The records from the example are treated as a sample of data. A representative result cannot be obtained from a sample population of less than one thousand.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="175" xmlns:help="http://openoffice.org/2000/help"/>To find the variance of the weight of all children of the same age, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="177" xmlns:help="http://openoffice.org/2000/help"/>In row 14, under Age, enter 7, 8, 9, and so on, one after the other. You will see as a result the variance of the weight values for all children of this age.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="179" xmlns:help="http://openoffice.org/2000/help"/><help:help-text value="visible" xmlns:help="http://openoffice.org/2000/help">DVARP calculates the variance of all cell values in a database field in all records that match the specified search criteria.</help:help-text> The records are from the example are treated as an entire population.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="183" xmlns:help="http://openoffice.org/2000/help"/>To find the variance of the weight for all children of the same age at Joe's birthday party, enter the following formula in B16:</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="185" xmlns:help="http://openoffice.org/2000/help"/>In row 14, under Age, enter 7, 8, 9, and so on, one after the other. The variance of the weight values for all children of this age attending Joe's birthday party appears.</p>
