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Top Forums Shell Programming and Scripting Formatting a file - Remove Duplicate Post 302528306 by freakygs on Tuesday 7th of June 2011 01:24:21 AM
Old 06-07-2011
Question Formatting a file - Remove Duplicate

Hi I have a file in the following format. Basically the file contains tablename and their aliases:

TABLE1
TABLE1 A
TABLE2
TABLE2 B
TABLE3
TABLE4
TABLE4 C
TABLE4

Upon formatting an sql statement I am getting such output.

Problem: Whenever a tablename appears with alias, it has repeated entries in the file. One without alias, and one with alias. I want to remove the first occurance of the tablename (without aliases). but there might be some entries with tablename without any alias, don't wanna delete those. also there can be a repetition of same table, and one could be with alias one could be without alias.

Solution: Basically just want to delete the line which preceeds with tablename with alias. so the output should be like:

TABLE1 A
TABLE2 B
TABLE3
TABLE4 C
TABLE4

Hope I am clear enough.
Your help would be much appreciated. Thanks.
 

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SQLSRV_NUM_FIELDS(3)													      SQLSRV_NUM_FIELDS(3)

sqlsrv_num_fields - Retrieves the number of fields (columns) on a statement

SYNOPSIS
mixed sqlsrv_num_fields (resource $stmt) DESCRIPTION
Retrieves the number of fields (columns) on a statement. PARAMETERS
o $stmt - The statment for which the number of fields is returned. sqlsrv_num_fields(3) can be called on a statement before or after statement execution. RETURN VALUES
Returns the number of fields on success. Returns FALSE otherwise. EXAMPLES
Example #1 sqlsrv_num_fields(3) example <?php $serverName = "serverNamesqlexpress"; $connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password"); $conn = sqlsrv_connect( $serverName, $connectionInfo); if( $conn === false ) { die( print_r( sqlsrv_errors(), true)); } $sql = "SELECT * FROM Table_1"; $stmt = sqlsrv_query($conn, $sql); if( $stmt === false) { die( print_r( sqlsrv_errors(), true)); } $numFields = sqlsrv_num_fields( $stmt ); while( sqlsrv_fetch( $stmt )) { // Iterate through the fields of each row. for($i = 0; $i < $numFields; $i++) { { echo sqlsrv_get_field($stmt, $i)." "; } echo "<br />"; } ?> SEE ALSO
sqlsrv_field_metadata(3), sqlsrv_fetch(3), sqlsrv_get_field(3). PHP Documentation Group SQLSRV_NUM_FIELDS(3)
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