Reports & Queries - Source : www.pcsoft-windev-webdev.com

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To pass parameters to the query, you can use:• the following notation. = xxx. = xxx. = xxxIn this case, the query is automatically run when the table is initialized.Note: you also have the ability to use one of the following notations :- MySource:MySource. = xxxMySource. = xxxMySource. = xxx- the indirection:{"."} = xxxor{""}. = xxx• HExecuteQuery.One of these two methods can be used in the declaration code of the global variables of the window or in theinitialization code of the table.Special cases:• Initializing a Table control or using TableDisplay without the taReExecuteQuery constant.• If no query parameter was modified since the last query execution, the query will not be re-run. Thetable will display the records corresponding to the last query execution.• Once the query parameters are modified, TableDisplay (or ListDisplay for a list) is used to re-run thequery. The table displays the records corresponding to the specified parameters.•Using TableDisplay with the taReExecuteQuery constant.To force the re-execution of the query, use TableDisplay (or ListDisplay for a list box) associated with thetaReExecuteQuery constant.Reminder: the structure of the query parameters being reinitialized whenever the query is run, don’t forgetto redefine the requested parameters before you use this function.Using a query with parameters in a reportPrincipleTo use a report based on a query with parameters, the query must be run before opening the report. Thequery can be run by iInitReportQuery. This function is used to run the query and to pass parameters to thisquery. This function can be called:• in the initialization code of the report,• before iPrintReport.ExampleThe WIN_CustomerForm window is used to browse the characteristics of customers. For each customer, theuser can click the BTN_PrintOrder button to print the RPT_CustomerOrdReport report. This report is associatedwith the QRY_QryCustomerOrd query that selects the orders placed by a given customer.216Part 2: Query editor
The following code is used to run the QRY_QryCustomerOrd query according to the current customer and toprint the report:-- Click process of BTN_PrintOrder button// Run the query according to the current customeriInitReportQuery(RPT_CustomerOrdReport, NUM_CustomerNum)// Print the reportiPrintReport(RPT_CustomerOrdReport)Parameters coming from edit controlsIn most cases, the parameters passed to a query with parameters are entered by the user in edit controls.In order for your query to be run even if no value was entered by the user, check "NULL if empty" for the editcontrols ("Details" tab of the control description).When this option is checked, if the edit control is empty, the value of the parameter passed to the query willcorrespond to the NULL constant. No error will occur when the query is run: the conditions that depend onthis parameter will be ignored.For example, the SQL code run is:SELECT NameOfItemsFROM NameOfFilesWHERE Item = {Param1}In this example, the table below describes the use of "NULL if empty":Value entered by "NULL if empty" optionSQL code runthe userNo value Option checked SELECT NameOfItemsFROM NameOfFilesNo value Option unchecked SELECT NameOfItemsFROM NameOfFilesWHERE Item = ’’A value is enteredOption checked or unchecked5.3.4 Two methods for passing parameters to a querySELECT NameOfItemsFROM NameOfFilesWHERE Item = ’ValueEntered’Two methods can be used to pass parameters to a query with parameters used in a window, in a page or in acontrol (list box, looper, combo box or table):• pass the parameters in HExecuteQuery.• use the following notation .,, then HExecuteQuery.Note: If the query with parameters is used in a report, the mode for passing parameters changes. See “Usinga query with parameters”, page 214 for more details.Using HExecuteQuery to pass parameters to a queryWhen running a query with HExecuteQuery, the last parameters passed to the function correspond to thequery parameters.The syntax used is as follows: = HExecuteQuery( [, ] [, [, [, …]]])Caution: In this case:• The values of the query parameters must be specified in their initialization order (visible in the queryeditor). Each parameter must correspond to the expected type. The different parameters are separatedby a comma.Part 2: Query editor 217
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WinDev 19 - WebDev 19 - WinDev Mobi
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PART 2 - QUERY EDITOR121. INTRODUCT
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REPORT EDITOR - TABLE OF CONTENTS1.
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5.4 Parameters and print options of
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11.3 Specific features of secondary
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1. INTRODUCTION1.1 What is a report
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The diagrams below present a simple
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1.2.2 Differences between the stand
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1.3 Main interface of the report ed
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1.4 A menu shaped like a ribbonWinD
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Run the test of the current reportF
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2.2 Creating a report2.2.1 Overview
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• Label report:Reading the data s
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•Table report:Reading the data so
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Use example• Printing an organize
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- specify the page number of the pa
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• Programming the reading of the
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2.2.6 Skin templateIf the project i
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2.4.3 Directory of the data files u
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The button bar of the print preview
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3. DATA SOURCES OF A REPORT3.1 Over
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Report based on an embedded queryTh
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To run the test of a report based o
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3.8 Report based on an Organizer co
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Once the report based on a text fil
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4.2.2 Display options in the print
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To save the current report, you can
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4.4.2 Including a form in a reportC
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The mouse or the keyboard can be us
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5. REPORT BLOCKS5.1 OverviewA print
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• End of document block• Iterat
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Note: The characteristics of a bloc
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5.6.1 Processes of the report block
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6. CONTROLS OF A REPORT6.1 The diff
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Transforming a "Static" control int
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Multilingual imagesIf your applicat
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Example:Date of the day when the re
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Example:To define the item linked t
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Note: The text displayed in the con
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Example: To make several controls i
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Method 2: (both reports must be dis
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2. On the "Modification" pane, in t
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The border markers are used to defi
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FontFontBoldFontCharsetFontCondense
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7. USING TABLES IN A REPORT7.1 Over
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Sales per year and pertype of produ
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7.3 Describing the tableTo display
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•A table row: hover the left side
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7.4.6 Moving a table columnMoving t
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8.2.3 Processes associated with an
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9. COMPOSITE REPORTS9.1 OverviewThe
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10. SEQUENCING THE REPORTS10.1 Over
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4. Configuring the print of page he
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WinDev Mobile code:// Configures th
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Caution: If the print destination i
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Tip: The printers referenced on a P
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WebDev example:The "RPT_CustomerRep
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12.2.4 Printing a bounded report wi
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• To print the "RPT_QueryReport"
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WinDev Mobile code:// Select the pr
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WinDev code:// Open the preview win
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WebDev example:The Web user selects
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In this example, the click code of
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13. PRINTING DUPLICATE COPIES13.1 O
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14. PRINTING A TEXT IN WATERMARK14.
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14.3.2 Method 2: Quick setting: dir
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* The order for printing the Start
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15.4 Break processIf your report co
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Example:The program required to cre
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15.8 Keywords associated with repor
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15.10 Functions of WLanguageMost WL
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iPicaToMMiPreview / iDestinationiPr
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Bar code 74Calculated 72Characteris
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QQuery 45Embedded query 45Independe
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152Part 1: Report Editor
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QUERY EDITOR - TABLE OF CONTENTS1.
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1. INTRODUCTION1.1 What is a query?
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1.2 Query editor1.2.1 OverviewThe q
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1.3 Main interface of the query edi
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1.4 A menu shaped like a ribbonWinD
Page 165 and 166: 1.6 Query and projectA query is not
Page 167 and 168: ImportantReminder: Reports & Querie
Page 169 and 170: 2.2.2 Creating a Select queryTo cre
Page 171 and 172: 8. Repeat operations 5 to 7 for eac
Page 173 and 174: 6. Specify the value or the paramet
Page 175 and 176: 3. If your project is not linked to
Page 177 and 178: 5. Enter the name and caption of th
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Page 185 and 186: 3. DESCRIBING A QUERY3.1 OverviewTh
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Page 191 and 192: Used to perform or cancel the sort
Page 193 and 194: To modify a "calculated item" in th
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Page 197 and 198: 4. Select (if necessary) "I want to
Page 199 and 200: Conditional AND operatorConditional
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Page 203 and 204: To enable the system for automatic
Page 205 and 206: 4.RUNNING THE TEST OF A QUERY AND U
Page 207 and 208: 4. Validate. The records from the q
Page 209 and 210: 4.2.1 Query in a WinDev window or i
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Page 213 and 214: Example: The following SQL code is
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Page 219 and 220: INDEXAAddItem 192Join 201Operation
Page 221 and 222: Use in a control 209Use in a report
Page 223: Reports &QueriesPART 3
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Page 228 and 229: 1.4 Step 2: Configuring the analysi
Page 230 and 231: To make several queries of your app
Page 232 and 233: 2. USING REPORTS & QUERIES2.1 Start
Page 234 and 235: 2.3.3 Using a new queryThe end user
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