deleting a table constraint

... command If you have a number of tables in a DataSet that you want to create in a database, you can iterate through the collection of DataRelation objects for the DataSet and use the ALTER TABLE ... ConfigurationSettings.AppSettings["Sql_ConnectString"]); MessageBox.Show( "Table " + TABLENAME + " created.", "Create DataTable from schema.", MessageBoxButtons.OK, MessageBoxIcon.Information); } private void CreateTableFromSchema(DataTable dt, ... from the schema of a DataTable The complete statement that is generated is shown in Example 10-16 Example 10-16 DDL generated to create database table from DataTable schema if exists (SELECT *...

Ngày tải lên: 21/01/2014, 11:20

... the data adapter and fill the data table Dim odaResults As New OleDb.OleDbDataAdapter(Me.lblSQLString.Text, _ BuildCnnStr("(local)", "Northwind")) Dim dtResults As New DataTable() Try odaResults.Fill(dtResults) ... is a matching record on the joined column (CustomerID) One of the ways that the right outer join is used is to find bad data, such as non-relational data that could result from importing data ... odaResults.Fill(dtResults) Catch excp As Exception MessageBox.Show(excp.Message) Exit Sub End Try ' Assign the data table to the data grid's DataSource property Me.dgResults.DataSource = dtResults End...

Ngày tải lên: 21/01/2014, 12:20

... that allow access to the contents of a table Create a relationship between tables Create an index to allow faster access to the information in a table Create a constraint to restrict values that ... page are as follows: • • • • • Check existing data on creation This applies your constraint to data that might already exist in the database when you add your relationship to the foreign key table ... should leave the fill factor in the default setting The smallest unit of storage in a SQL Server database is a page, which can hold up to 8,096 bytes of data The data for tables and indexes are stored...

Ngày tải lên: 26/01/2014, 07:20

... Speech and Natural Language, pages 233–237, Morristown, NJ, USA Association for Computational Linguistics Ravi Sinha and Rada Mihalcea 2007 Unsupervised graph-basedword sense disambiguation using ... 5.1 Data Table 1: Evaluation results on Senseval-2 and Senseval-3 data-set of all words task To compare our results, we ran our experiments on SENSEVAL-2 and SENSEVAL -3 English allwords data sets ... the variable swi 3.4 Constraints A constraint specifies a particular configuration of the agents involved in its definition and has a utility associated with it For e.g If cij is a constraint defined...

Ngày tải lên: 20/02/2014, 04:20

... essential to generate an entire table- of-contents tree in a concerted fashion This paper presents a hierarchical discriminative approach for table- of-contents generation Figure shows a fragment of a ... model and the baselines are available at http://people.csail.mit.edu/branavan/code/toc 545 ticular domain, such as medical literature or scientific articles By making strong assumptions about ... segment and are grammatical Selection and contextual preferences are encoded in the local features The features that capture selection constraints are specified at the word level, and contextual features...

Ngày tải lên: 17/03/2014, 04:20

... Iida A, Hirata T, Hasegawa M, Yuasa T, Miyazawa M, Takahashi Y, Yasunami M, Kimura A, O’Connor DH, Watkins DI, Nagai Y: Cytotoxic T lymphocyte-based control of simian immunodeficiency virus Inagaki ... Protein Data Bank: a redesigned query system and relational database based on the mmCIF schema Nucleic Acids Res 2005, 33:D233-D237 50 Song H, Nakayama EE, Yokoyama M, Sato H, Levy JA, Shioda T: A single ... RT assay (B) SIVmac239Gag205E340M as well as SIVmac239, but not in SIVmac239Gag205E CA hexamers Thus, this pocket may be a target candidate for anti-viral drugs Both GagL216S and GagD205E mutations...

Ngày tải lên: 13/08/2014, 01:20

... Perfect already so far, you say that sth has happened or is finished in the past and it has a connection to the present action started in the past and continues up to the present up to now, have/has ... LEARNING ENGLISH ONLINE mostly when two actions in a story are related to each other: the action which had already happened is put into Past Perfect, the other action into Simple Past the past ... He wasn't going Was he going? I have worked I haven't worked Have I worked? He has worked He hasn’t worked Has he worked? I have gone I haven't gone Have I gone? He has gone He hasn’t gone Has...

Ngày tải lên: 07/08/2015, 15:32

... computed goto ASCII char A ASCII char B ASCII char C EXAMPLE 3A: org movlw movwf movlw call org Table: addwf retlw retlw 0x80 HIGH Table PCLATH offset Table 0x320 PCL,F A ’B’  2000 Microchip ... operation as shown in Example The code in Example will allow the user to place and access a table anywhere in program memory movf call org Table: movwf 0x80 LOW Table ;get low bits of ; address ... roll over to page ;return the ASCII ; char A ;return the ASCII ; char B ;return the ASCII ; char C To take care of both table location and page boundary crossing, it is necessary to a 13-bit computed...

Ngày tải lên: 11/01/2016, 11:51

... population Disability-stratified stroke life -table A life -table approach was applied to extrapolate the trial findings and to arrive at estimates of lifetime health benefits and costs per patient ... original epidemiological data or are adjusted through a hazard ratio (see table 2) All transitions are assumed to take place at the end of each cycle of six months In our life time perspective a half ... similarity with national stroke statistics in terms of age, length of hospital stay, casefatality, functional status at discharge, and destination after discharge The research populations compare well...

Ngày tải lên: 25/10/2012, 10:35

... aids) can be regarded as an important factor affecting students’ learning situation According to Lam (2003: 26), authentic materials may include: tapes, tape-recorders, language laboratories, wall ... of speaking in language teaching programs, Difficulties in and constraints on learning to speak a foreign language, and Factors affecting students’ participation in speaking activities Chapter ... pronunciation and their accents are not as good as that of English teachers in cities and of native people, their voice is rather clear and audible 28 Moreover, in class, they always have acceptable...

Ngày tải lên: 07/11/2012, 14:44

... automatically create a total for the year; you would have to create a calculation for the annual total 10 CHAPTER ■ CREATING A PIVOT TABLE You should rearrange the data, using actual dates (if available) ... visible CHAPTER ■ CREATING A PIVOT TABLE Creating an Excel Table from the Worksheet Data • As a final step in preparing the Excel source data, you should format the worksheet data as an Excel Table, ... source data, can they be calculated at the source, or will they be calculated in the pivot table? Adding calculations to a large pivot table may cause any updates to be very slow, and they may have...

Ngày tải lên: 09/10/2013, 12:20

... cell again later For other cells in the Values area, unless the PivotTable settings are changed programmatically, you can’t make any changes to the PivotTable values Even if you programmatically ... the custom name (see Figure 6-6), and it will be accepted Figure 6-6 Add a space character at the end of a custom name ■ Adding a space character is a subtle change to the custom name, and would ... pivot table layout This wasn’t replaced by the Quantity field, even though it’s in the same place in the source data You had to add the Quantity field to the pivot table layout again, and reapply...

Ngày tải lên: 09/10/2013, 12:20

... year and month in the pivot table Product is in the Column Labels area, Years and Date are in the Row Labels area, and Units is in the Values area If you calculate a running total with Date as ... formulas in a pivot table to create calculated fields and calculated items ■ Note Formulas are available only in non-OLAP-based pivot tables Problem You want to add custom formulas to your pivot table, ... many fields in the Row and Column Labels areas, and several fields in the Values area You can’t tell if a formula is a calculated item or a calculated field 63 64 CHAPTER ■ CALCULATIONS IN A...

Ngày tải lên: 09/10/2013, 12:20

... the Values area You applied Above Average conditional formatting to the Values cells, and it is working as expected The sales manager has asked for a last-minute change to the pivot table layout, ... pivot table, text is displayed as zero in the Values area CHAPTER ■ FORMATTING A PIVOT TABLE You could create a custom number format, and then apply that format to the source data, instead of ... criteria 4.16 Applying Conditional Formatting: Formatting Labels in a Date Period Problem Your pivot table contains several years of sales forecast data, with a date field in the Row Labels area When...

Ngày tải lên: 09/10/2013, 12:20

... EnableDataValueEditing property can only be set programmatically, and it allows temporary changes to the pivot table data area cells ■ Caution If you rely on pivot tables to summarize your data, ... aware that the data can be changed, accidentally or maliciously, and use other methods to verify the data, as a safeguard To prevent accidental changes to the pivot table, you should create another ... filter, and displays a message warning: Private Sub Worksheet_PivotTableUpdate(ByVal Target As PivotTable) Dim pf As PivotField On Error GoTo exit_Handler Application.EnableEvents = False Application.ScreenUpdating...

Ngày tải lên: 09/10/2013, 12:20

... the Data group, click Change Data Source Type the external data range’s sheet name and table name in the Table/ Range box For example, if the sheet name is BillingData and the external data range ... records are added, and the pivot table contains all the data 143 144 CHAPTER ■ UPDATING A PIVOT TABLE When you created a pivot table from the external data, you may have used a reference to range ... External Data group on the Data tab of the Ribbon, a named External Data Range is created for the imported data If you base the pivot table on this named range, it expands automatically as new...

Ngày tải lên: 09/10/2013, 12:20

... columns and rows that contain the headings appear on each printed page The Repeat item labels on each printed page pivot table option ensures that labels print at the top of each page if an item ... PRINTING PIVOT TABLE DATA ■ Note Although the web page title specifies Excel 2002, the Report Manager download can be used in Excel 2003 To create a summary table from the pivot table data, follow ... Microsoft Word, a pivot table doesn’t have a setting to keep items together You can manually adjust the page breaks in Page Break Preview, or set each item to start on a new page, as described in...

Ngày tải lên: 21/10/2013, 22:20

... add value to the information presented Ensure that all columns in the PivotTable report are wide enough to show the data they contain, and that all rows are tall enough Add any formatting that ... toolbar to open the field list and add more fields to the pivot table The Summary functions for the data fields are those that appeared in the original Excel PivotTable and can’t be changed You can ... publish a pivot table or pivot chart with interactivity, visitors will be able to make changes to the pivot table and pivot chart on the web page, such as adding and removing fields and creating...

Ngày tải lên: 21/10/2013, 22:20

... PM Page 184 8.3 ■ USING A DATA SOURCE: ACCESS DATABASE WITH USER-LEVEL SECURITY You are trying to create a pivot table based on a table in the Access database, but you get the error message “You ... tab, add a checkmark to Allow changes by more than one user at the same time This also allows workbook merging Click OK, and click OK again to save the workbook if a confirmation message appears ... disabled in a shared workbook: • Creating or changing PivotTable reports • Creating or changing charts or PivotChart reports • Creating lists • Creating data tables • Inserting or deleting a range...

Ngày tải lên: 21/10/2013, 22:20