how to pass a variable to an update sql statement inside a loop


 
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Old 04-14-2010
how to pass a variable to an update sql statement inside a loop

hi all,

i am experiencing an error which i think an incorrect syntax for the where clause passing a variable was given. under is my code.

Code:
sqlplus -s ${USERNAME}/${PASSWORD}@${SID} << END1 >> $LOGFILE
whenever sqlerror exit
set serveroutput on size 1000000
declare
  l_rc                  varchar2(1)   := null;
  cursor c1 is
    select first_name as acct_id,
      from srtable;
begin
  dbms_output.enable(1000000);
  for i in c1 loop
         update srtable
         set appt_notes = 'N'
         where first_name = i.acct_id;
         commit;
  end loop;
END1

this is the error:
-6502 ORA-06502: PL/SQL: numeric or value error: character to number conversion

does anyone know the correct syntax for my where clause? Need help.
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DB2_BIND_PARAM(3)							 1							 DB2_BIND_PARAM(3)

db2_bind_param - Binds a PHP variable to an SQL statement parameter

SYNOPSIS
bool db2_bind_param (resource $stmt, int $parameter-number, string $variable-name, [int $parameter-type], [int $data-type], [int $precision = -1], [int $scale]) DESCRIPTION
Binds a PHP variable to an SQL statement parameter in a statement resource returned by db2_prepare(3). This function gives you more con- trol over the parameter type, data type, precision, and scale for the parameter than simply passing the variable as part of the optional input array to db2_execute(3). PARAMETERS
o $stmt - A prepared statement returned from db2_prepare(3). o $parameter-number - Specifies the 1-indexed position of the parameter in the prepared statement. o $variable-name - A string specifying the name of the PHP variable to bind to the parameter specified by $parameter-number. o $parameter-type - A constant specifying whether the PHP variable should be bound to the SQL parameter as an input parameter ( DB2_PARAM_IN), an output parameter ( DB2_PARAM_OUT), or as a parameter that accepts input and returns output ( DB2_PARAM_INOUT). To avoid memory overhead, you can also specify DB2_PARAM_FILE to bind the PHP variable to the name of a file that contains large object (BLOB, CLOB, or DBCLOB) data. o $data-type - A constant specifying the SQL data type that the PHP variable should be bound as: one of DB2_BINARY, DB2_CHAR, DB2_DOUBLE, or DB2_LONG . o $precision - Specifies the precision with which the variable should be bound to the database. This parameter can also be used for retrieving XML output values from stored procedures. A non-negative value specifies the maximum size of the XML data that will be retrieved from the database. If this parameter is not used, a default of 1MB will be assumed for retrieving the XML output value from the stored procedure. o $scale - Specifies the scale with which the variable should be bound to the database. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Binding PHP variables to a prepared statement The SQL statement in the following example uses two input parameters in the WHERE clause. We call db2_bind_param(3) to bind two PHP variables to the corresponding SQL parameters. Notice that the PHP variables do not have to be declared or assigned before the call to db2_bind_param(3); in the example, $lower_limit is assigned a value before the call to db2_bind_param(3), but $upper_limit is assigned a value after the call to db2_bind_param(3). The variables must be bound and, for parameters that accept input, must have any value assigned, before calling db2_execute(3). <?php $sql = 'SELECT name, breed, weight FROM animals WHERE weight > ? AND weight < ?'; $conn = db2_connect($database, $user, $password); $stmt = db2_prepare($conn, $sql); // We can declare the variable before calling db2_bind_param() $lower_limit = 1; db2_bind_param($stmt, 1, "lower_limit", DB2_PARAM_IN); db2_bind_param($stmt, 2, "upper_limit", DB2_PARAM_IN); // We can also declare the variable after calling db2_bind_param() $upper_limit = 15.0; if (db2_execute($stmt)) { while ($row = db2_fetch_array($stmt)) { print "{$row[0]}, {$row[1]}, {$row[2]} "; } } ?> The above example will output: Pook, cat, 3.2 Rickety Ride, goat, 9.7 Peaches, dog, 12.3 Example #2 Calling stored procedures with IN and OUT parameters The stored procedure match_animal in the following example accepts three different parameters: o an input (IN) parameter that accepts the name of the first animal as input o an input-output (INOUT) parameter that accepts the name of the second animal as input and returns the string TRUE if an animal in the database matches that name o an output (OUT) parameter that returns the sum of the weight of the two identified animals In addition, the stored procedure returns a result set consisting of the animals listed in alphabetic order starting at the animal corresponding to the input value of the first parameter and ending at the animal corresponding to the input value of the second parameter. <?php $sql = 'CALL match_animal(?, ?, ?)'; $conn = db2_connect($database, $user, $password); $stmt = db2_prepare($conn, $sql); $name = "Peaches"; $second_name = "Rickety Ride"; $weight = 0; db2_bind_param($stmt, 1, "name", DB2_PARAM_IN); db2_bind_param($stmt, 2, "second_name", DB2_PARAM_INOUT); db2_bind_param($stmt, 3, "weight", DB2_PARAM_OUT); print "Values of bound parameters _before_ CALL: "; print " 1: {$name} 2: {$second_name} 3: {$weight} "; if (db2_execute($stmt)) { print "Values of bound parameters _after_ CALL: "; print " 1: {$name} 2: {$second_name} 3: {$weight} "; print "Results: "; while ($row = db2_fetch_array($stmt)) { print " {$row[0]}, {$row[1]}, {$row[2]} "; } } ?> The above example will output: Values of bound parameters _before_ CALL: 1: Peaches 2: Rickety Ride 3: 0 Values of bound parameters _after_ CALL: 1: Peaches 2: TRUE 3: 22 Results: Peaches, dog, 12.3 Pook, cat, 3.2 Rickety Ride, goat, 9.7 Example #3 Inserting a binary large object (BLOB) directly from a file The data for large objects are typically stored in files, such as XML documents or audio files. Rather than reading an entire file into a PHP variable, and then binding that PHP variable into an SQL statement, you can avoid some memory overhead by binding the file directly to the input parameter of your SQL statement. The following example demonstrates how to bind a file directly into a BLOB column. <?php $stmt = db2_prepare($conn, "INSERT INTO animal_pictures(picture) VALUES (?)"); $picture = "/opt/albums/spook/grooming.jpg"; $rc = db2_bind_param($stmt, 1, "picture", DB2_PARAM_FILE); $rc = db2_execute($stmt); ?> SEE ALSO
db2_execute(3), db2_prepare(3). PHP Documentation Group DB2_BIND_PARAM(3)

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