eZ Components 2006.2

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Database: ezcQueryExpressionOracle

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Class: ezcQueryExpressionOracle

The ezcQueryExpressionPgsql class is used to create SQL expression for PostgreSQL. [source]

This class reimplements the methods that have a different syntax in postgreSQL.

Parents

ezcQueryExpression
   |
   --ezcQueryExpressionOracle

Method Summary

public ezcQueryExpressionOracle	`__construct( )` Constructs an empty ezcQueryExpression
public string	`concat( 0 )` Returns a series of strings concatinated
public string	`subString( $value, $from, [$len = null] )` Returns part of a string.

Inherited Methods

From ezcQueryExpression :

public ezcQueryExpression	`ezcQueryExpression::__construct()` Constructs an empty ezcQueryExpression
public string	`ezcQueryExpression::add()` Returns the SQL to add values or expressions together.
public string	`ezcQueryExpression::avg()` Returns the average value of a column
public string	`ezcQueryExpression::between()` Returns SQL that checks if an expression evaluates to a value between two values.
public void	`ezcQueryExpression::concat()` Returns a series of strings concatinated
public string	`ezcQueryExpression::count()` Returns the number of rows (without a NULL value) of a column
public string	`ezcQueryExpression::div()` Returns the SQL to divide values or expressions by eachother.
public string	`ezcQueryExpression::eq()` Returns the SQL to check if two values are equal.
protected string	`ezcQueryExpression::getIdentifier()` Returns the correct identifier for the alias $alias.
protected array(string)	`ezcQueryExpression::getIdentifiers()` Returns the correct identifiers for the aliases found in $aliases.
public string	`ezcQueryExpression::gt()` Returns the SQL to check if one value is greater than another value.
public string	`ezcQueryExpression::gte()` Returns the SQL to check if one value is greater than or equal to another value.
public bool	`ezcQueryExpression::hasAliases()` Returns true if this object has aliases.
public string	`ezcQueryExpression::in()` Returns the SQL to check if a value is one in a set of given values..
public string	`ezcQueryExpression::isNull()` Returns SQL that checks if a expression is null.
public string	`ezcQueryExpression::lAnd()` Returns the SQL to bind logical expressions together using a logical and.
public string	`ezcQueryExpression::length()` Returns the length of a text field.
public void	`ezcQueryExpression::like()` Match a partial string in a column.
public string	`ezcQueryExpression::lOr()` Returns the SQL to bind logical expressions together using a logical or.
public string	`ezcQueryExpression::lt()` Returns the SQL to check if one value is less than another value.
public string	`ezcQueryExpression::lte()` Returns the SQL to check if one value is less than or equal to another value.
public string	`ezcQueryExpression::max()` Returns the highest value of a column
public string	`ezcQueryExpression::md5()` Returns the md5 sum of a field.
public string	`ezcQueryExpression::min()` Returns the lowest value of a column
public string	`ezcQueryExpression::mod()` Returns the remainder of the division operation $expression1 / $expression2.
public string	`ezcQueryExpression::mul()` Returns the SQL to multiply values or expressions by eachother.
public string	`ezcQueryExpression::neq()` Returns the SQL to check if two values are unequal.
public string	`ezcQueryExpression::not()` Returns the SQL for a logical not.
public string	`ezcQueryExpression::now()` Returns the current system date.
public string	`ezcQueryExpression::round()` Rounds a numeric field to the number of decimals specified.
public void	`ezcQueryExpression::setAliases()` Sets the aliases $aliases for this object.
public string	`ezcQueryExpression::sub()` Returns the SQL to subtract values or expressions from eachother.
public string	`ezcQueryExpression::subString()` Returns part of a string.
public string	`ezcQueryExpression::sum()` Returns the total sum of a column

Methods

__construct

ezcQueryExpressionOracle __construct( )

Constructs an empty ezcQueryExpression

Redefinition of

Method	Description
`ezcQueryExpression::__construct()`	Constructs an empty ezcQueryExpression

concat

string concat( string|array(string) 0 )

Returns a series of strings concatinated

concat() accepts an arbitrary number of parameters. Each parameter must contain an expression or an array with expressions.

Parameters

Name	Type	Description
`0`	string\|array(string)	strings that will be concatinated.

Throws

Class	Description
`ezcQueryVariableException`	if no parameters are provided

Redefinition of

Method	Description
`ezcQueryExpression::concat()`	Returns a series of strings concatinated

subString

string subString( string $value, int $from, [int $len = null] )

Returns part of a string.

Note: Not SQL92, but common functionality.

Parameters

Name	Type	Description
`$value`	string	the target $value the string or the string column.
`$from`	int	extract from this characeter.
`$len`	int	extract this amount of characters.

Redefinition of

Method	Description
`ezcQueryExpression::subString()`	Returns part of a string.

Last updated: Thu, 01 Nov 2007

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eZ Components 2006.2

Getting Started

Components

Database: ezcQueryExpressionOracle

Class: ezcQueryExpressionOracle

Parents

Method Summary

Inherited Methods

Methods

__construct

Redefinition of

concat

Parameters

Throws

Redefinition of

subString

Parameters

Redefinition of