(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_idODBC 连接标识符,详见 odbc_connect()。
catalogThe catalog ('qualifier' in ODBC 2 parlance).
schemaThe 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_nameThe 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_nameThe 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
)