rows

问题 Hello guys I have seen a code with $row['columnname'] .The code is $myQuery = "SELECT * FROM information_schema.columns WHERE table_name = '$tabname'"; $re = mysql_query($myQuery); while($row = mysql_fetch_array ($re)){ if(!empty ($row)){ $col_name = $row['COLUMN_NAME']; $myQuery = "SELECT ".$col_name." FROM ".$tabname." WHERE sampleid='".$sid."'"; echo "<br>".$myQuery; $reqq = mysql_query($myQuery); $roww = mysql_fetch_array($reqq); echo "<br>".$roww[$col_name]; } } My question is what is

问题 I want to query limited result only on one page. For example, the query will show 30 users from database on page 1, and then continue with another 30 on page 2 etc. For example Facebook messages when you go to conversation history and you have to click "show more" to load more previous messages. EDIT: <?php $dbhost = ''; $dbuser = ''; $dbpass = ''; $conn = mysql_connect($dbhost, $dbuser, $dbpass); if(! $conn ) { die('Could not connect: ' . mysql_error()); } $sql = "SELECT * FROM members ORDER

问题 As the title says, I want to find all rows in a Matlab matrix that in certain columns the values in the row are equal with the values in the previous row, or in general, equal in some row in the matrix. For example I have a matrix 1 2 3 4 1 2 8 10 4 5 7 9 2 3 6 4 1 2 4 7 and I want to find the following rows: 1 2 3 4 1 2 3 10 1 2 4 7 How do I do something like that and how do I do it generally for all the possible pairs in columns 1 and 2, and have equal values in previous rows, that exist in

问题 I am copying a range into the next empty cell of a different workbook. the following code; Public Sub InvoicedInstallments() Dim rng1 As Range Dim rng2 As Range Dim rng3 As Range Dim fname As String Dim mt As String, yr As String mt = MonthBox.Value yr = YearBox.Value fname = yr & mt & "DB" & ".xlsx" Set rng1 = Workbooks("201209TB.xlsx").Worksheets("excel").Range("E348") Set rng2 = Workbooks("201209TB.xlsx").Worksheets("excel").Range("E295") Set rng3 = Workbooks(fname).Worksheets("UK monthly

问题 Can someone help? I have an existing query below(SQL Server) that is running and pulls thousands of rows.However, I need to select a specific number of rows for a few different field values in one of the column in 'vw_client_uli_member_type' table. Where and how do I pit this condition? Thank you. select ind_int_code as 'Individual Type', ind_first_name as 'First Name', ind_last_name as 'Last Name', cst_recno as 'Member ID', cst_eml_address_dn as 'Email Address', adr_city as 'City', adr_state

问题 I have a table, MessageTable in sqlite.I want to delete selected rows from it. How can I achieve that. I have searched hard but didn't get any suitable answer. Any help would be appreciated. TIA. 回答1: If you want to delete the multiple selected rows from a table, IN clause will be the one of the best choice. While deleting the rows you need to take care what kind of column you are going to mention in the condition. Here are the various data types mentioned how to delete the set of rows from a

问题 Is there any way to limit the maximum number of rows when I create a table in Oracle? 回答1: If the table has a numeric key, you could add a check constraint that states that the key does not exceed a specific value: ALTER TABLE turnip ADD CONSTRAINT check_turnip_id CHECK (turnip_id <= 50) / 回答2: You could create a statement trigger "BEFORE INSERT" and check there the nubmer of rows. CREATE OR REPLACE TRIGGER BI_MY_TABLE BEFORE INSERT ON MY_TABLE DECLARE CountRows NUMBER; BEGIN SELECT COUNT(*)

问题 Is there a simple way to swap the position of two rows in an unbound DataGridView? I am using it to display an ordered list, where I want the up/down arrow keys to shuffle a row up and down the grid, but I can't see any way to reposition a row within the grid without completely repopulating it, which seems excessive. The Index value for a row is read-only. 回答1: to move a row, use DataGridView.Rows.RemoveAt and then DataGridView.Rows.Insert 回答2: If you have data bound via BindingSource (and

问题 Hi i have this problem with this type of input data: input file which is contain those columns: file1 (original file) 7 LINE_A G_VALUEFA D_VALUEFA SEAT01 SEAT02 SEAT03 SEAT04 7 LINE_B G_VALUEFA D_VALUEFA SEAT22 SEAT25 SEAT27 EXNUM899999SSSSS9S8S5S2S8 EXNUM899999SSSSS9S8S5S2S8 EXNUM899999SSSSS9S8S5S2S8 EXNUM899999SSSSS9S8S5S2S8 7 LINE_C G_PREFX D_VALUEFX SEAT01 SEAT02 SEAT03 SEAT04 8 LINE_G G_PREFX D_VALUEFX POSITION55 POSITION82 VALUE85 POSITION44 POSITION448 POSITION448 POSITION448 7 LINE_C

问题 Let's say we have the following table: CREATE TABLE "ARTICLE_COUNTER_STATISTICS_M" ( "ID" NUMBER(19,0) NOT NULL ENABLE, "ITEMCOUNT" NUMBER(19,0), "VERSION" TIMESTAMP (6) DEFAULT SYSTIMESTAMP ) Unique constraint is on ID and VERSION field. Example of some rows that could be in DB(Timestamps is be the same for all records always): 1374659422641 22 2014.02.26 09:45:01,000000000 1387797258001 7 2014.02.26 09:45:01,000000000 1387796687862 1 2014.02.26 09:45:01,000000000 1387800521317 1 2014.02.26