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File: adodb/datadict/datadict-sybase.inc.php

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File: adodb/datadict/datadict-sybase.inc.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: PHP MySQL JSON Manager
Build and Execute SQL queries with results in JSON
Author: By
Last change:
Date: 8 years ago
Size: 5,814 bytes
 

Contents

Class file image Download
<?php

/**
  V5.18 3 Sep 2012 (c) 2000-2012 John Lim (jlim#natsoft.com). All rights reserved.
  Released under both BSD license and Lesser GPL library license.
  Whenever there is any discrepancy between the two licenses,
  the BSD license will take precedence.
   
  Set tabs to 4 for best viewing.
 
*/

// security - hide paths
if (!defined('ADODB_DIR')) die();

class
ADODB2_sybase extends ADODB_DataDict {
    var
$databaseType = 'sybase';
   
    var
$dropIndex = 'DROP INDEX %2$s.%1$s';
   
    function
MetaType($t,$len=-1,$fieldobj=false)
    {
        if (
is_object($t)) {
           
$fieldobj = $t;
           
$t = $fieldobj->type;
           
$len = $fieldobj->max_length;
        }
       
       
$len = -1; // mysql max_length is not accurate
       
switch (strtoupper($t)) {

        case
'INT':
        case
'INTEGER': return 'I';
        case
'BIT':
        case
'TINYINT': return 'I1';
        case
'SMALLINT': return 'I2';
        case
'BIGINT': return 'I8';
       
        case
'REAL':
        case
'FLOAT': return 'F';
        default: return
parent::MetaType($t,$len,$fieldobj);
        }
    }
   
    function
ActualType($meta)
    {
        switch(
strtoupper($meta)) {
        case
'C': return 'VARCHAR';
        case
'XL':
        case
'X': return 'TEXT';
       
        case
'C2': return 'NVARCHAR';
        case
'X2': return 'NTEXT';
       
        case
'B': return 'IMAGE';
           
        case
'D': return 'DATETIME';
        case
'TS':
        case
'T': return 'DATETIME';
        case
'L': return 'BIT';
       
        case
'I': return 'INT';
        case
'I1': return 'TINYINT';
        case
'I2': return 'SMALLINT';
        case
'I4': return 'INT';
        case
'I8': return 'BIGINT';
       
        case
'F': return 'REAL';
        case
'N': return 'NUMERIC';
        default:
            return
$meta;
        }
    }
   
   
    function
AddColumnSQL($tabname, $flds)
    {
       
$tabname = $this->TableName ($tabname);
       
$f = array();
        list(
$lines,$pkey) = $this->_GenFields($flds);
       
$s = "ALTER TABLE $tabname $this->addCol";
        foreach(
$lines as $v) {
           
$f[] = "\n $v";
        }
       
$s .= implode(', ',$f);
       
$sql[] = $s;
        return
$sql;
    }
   
    function
AlterColumnSQL($tabname, $flds)
    {
       
$tabname = $this->TableName ($tabname);
       
$sql = array();
        list(
$lines,$pkey) = $this->_GenFields($flds);
        foreach(
$lines as $v) {
           
$sql[] = "ALTER TABLE $tabname $this->alterCol $v";
        }

        return
$sql;
    }
   
    function
DropColumnSQL($tabname, $flds)
    {
       
$tabname = $this->TableName($tabname);
        if (!
is_array($flds)) $flds = explode(',',$flds);
       
$f = array();
       
$s = "ALTER TABLE $tabname";
        foreach(
$flds as $v) {
           
$f[] = "\n$this->dropCol ".$this->NameQuote($v);
        }
       
$s .= implode(', ',$f);
       
$sql[] = $s;
        return
$sql;
    }
   
   
// return string must begin with space
   
function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
    {
       
$suffix = '';
        if (
strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
        if (
$fautoinc) $suffix .= ' DEFAULT AUTOINCREMENT';
        if (
$fnotnull) $suffix .= ' NOT NULL';
        else if (
$suffix == '') $suffix .= ' NULL';
        if (
$fconstraint) $suffix .= ' '.$fconstraint;
        return
$suffix;
    }
   
   
/*
CREATE TABLE
    [ database_name.[ owner ] . | owner. ] table_name
    ( { < column_definition >
        | column_name AS computed_column_expression
        | < table_constraint > ::= [ CONSTRAINT constraint_name ] }

            | [ { PRIMARY KEY | UNIQUE } [ ,...n ]
    )

[ ON { filegroup | DEFAULT } ]
[ TEXTIMAGE_ON { filegroup | DEFAULT } ]

< column_definition > ::= { column_name data_type }
    [ COLLATE < collation_name > ]
    [ [ DEFAULT constant_expression ]
        | [ IDENTITY [ ( seed , increment ) [ NOT FOR REPLICATION ] ] ]
    ]
    [ ROWGUIDCOL]
    [ < column_constraint > ] [ ...n ]

< column_constraint > ::= [ CONSTRAINT constraint_name ]
    { [ NULL | NOT NULL ]
        | [ { PRIMARY KEY | UNIQUE }
            [ CLUSTERED | NONCLUSTERED ]
            [ WITH FILLFACTOR = fillfactor ]
            [ON {filegroup | DEFAULT} ] ]
        ]
        | [ [ FOREIGN KEY ]
            REFERENCES ref_table [ ( ref_column ) ]
            [ ON DELETE { CASCADE | NO ACTION } ]
            [ ON UPDATE { CASCADE | NO ACTION } ]
            [ NOT FOR REPLICATION ]
        ]
        | CHECK [ NOT FOR REPLICATION ]
        ( logical_expression )
    }

< table_constraint > ::= [ CONSTRAINT constraint_name ]
    { [ { PRIMARY KEY | UNIQUE }
        [ CLUSTERED | NONCLUSTERED ]
        { ( column [ ASC | DESC ] [ ,...n ] ) }
        [ WITH FILLFACTOR = fillfactor ]
        [ ON { filegroup | DEFAULT } ]
    ]
    | FOREIGN KEY
        [ ( column [ ,...n ] ) ]
        REFERENCES ref_table [ ( ref_column [ ,...n ] ) ]
        [ ON DELETE { CASCADE | NO ACTION } ]
        [ ON UPDATE { CASCADE | NO ACTION } ]
        [ NOT FOR REPLICATION ]
    | CHECK [ NOT FOR REPLICATION ]
        ( search_conditions )
    }


    */
   
    /*
    CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name
    ON { table | view } ( column [ ASC | DESC ] [ ,...n ] )
        [ WITH < index_option > [ ,...n] ]
        [ ON filegroup ]
        < index_option > :: =
            { PAD_INDEX |
                FILLFACTOR = fillfactor |
                IGNORE_DUP_KEY |
                DROP_EXISTING |
            STATISTICS_NORECOMPUTE |
            SORT_IN_TEMPDB
        }
*/
   
function _IndexSQL($idxname, $tabname, $flds, $idxoptions)
    {
       
$sql = array();
       
        if ( isset(
$idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) {
           
$sql[] = sprintf ($this->dropIndex, $idxname, $tabname);
            if ( isset(
$idxoptions['DROP']) )
                return
$sql;
        }
       
        if ( empty (
$flds) ) {
            return
$sql;
        }
       
       
$unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : '';
       
$clustered = isset($idxoptions['CLUSTERED']) ? ' CLUSTERED' : '';
       
        if (
is_array($flds) )
           
$flds = implode(', ',$flds);
       
$s = 'CREATE' . $unique . $clustered . ' INDEX ' . $idxname . ' ON ' . $tabname . ' (' . $flds . ')';
       
        if ( isset(
$idxoptions[$this->upperName]) )
           
$s .= $idxoptions[$this->upperName];

       
$sql[] = $s;
       
        return
$sql;
    }
}
?>