(PHP 4, PHP 5, PHP 7)
odbc_columns — Lists the column names in specified tables
$connection_id
[, string $catalog
[, string $schema
[, string $table_name
[, string $column_name
]]]] ) : resourceLists all columns in the requested range.
connection_id
ODBC 连接标识符,详见 odbc_connect()。
catalog
The catalog ('qualifier' in ODBC 2 parlance).
schema
The schema ('owner' in ODBC 2 parlance). 此参数接受下列查询模式:"%" 来匹配零到多个字符,"_" 来匹配单个字符。
table_name
The table name. 此参数接受下列查询模式:"%" 来匹配零到多个字符,"_" 来匹配单个字符。
column_name
The column name. 此参数接受下列查询模式:"%" 来匹配零到多个字符,"_" 来匹配单个字符。
Returns an ODBC result identifier 或者在失败时返回 FALSE
.
The result set has the following columns:
The result set is ordered by TABLE_CAT, TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.
Example #1 List Columns of a Table
<?php
$conn = odbc_connect($dsn, $user, $pass);
$columns = odbc_columns($conn, 'TutorialDB', 'dbo', 'test', '%');
while (($row = odbc_fetch_array($columns))) {
print_r($row);
break; // further rows omitted for brevity
}
?>
以上例程的输出类似于:
Array ( [TABLE_CAT] => TutorialDB [TABLE_SCHEM] => dbo [TABLE_NAME] => TEST [COLUMN_NAME] => id [DATA_TYPE] => 4 [TYPE_NAME] => int [COLUMN_SIZE] => 10 [BUFFER_LENGTH] => 4 [DECIMAL_DIGITS] => 0 [NUM_PREC_RADIX] => 10 [NULLABLE] => 0 [REMARKS] => [COLUMN_DEF] => [SQL_DATA_TYPE] => 4 [SQL_DATETIME_SUB] => [CHAR_OCTET_LENGTH] => [ORDINAL_POSITION] => 1 [IS_NULLABLE] => NO )