Quantum coherence is an essential feature of quantum mechanics and is an important physical resource in quantum information.
$key ( mixed) – Identifier (string) or associative array of field/value pairs.or_not_like ( $field ] ] ) ¶ Parameters:Īdds a NOT LIKE clause to a query, separating multiple calls with OR. not_like ( $field ] ] ) ¶ Parameters:Īdds a NOT LIKE clause to a query, separating multiple calls with AND. or_like ( $field ] ] ) ¶ Parameters:Īdds a LIKE clause to a query, separating multiple class with OR. $side ( string) – Which side of the expression to put the ‘%’ wildcard onĪdds a LIKE clause to a query, separating multiple calls with AND.$match ( string) – Text portion to match.group_end ( ) ¶ Returns:Įnds a group expression. Starts a group expression, using OR NOTs for the conditions inside it. Starts a group expression, using AND NOTs for the conditions inside it. Starts a group expression, using ORs for the conditions inside it. Starts a group expression, using ANDs for the conditions inside it. $values ( array) – Array of target values.$key ( string) – Name of field to examine.Generates a WHERE field NOT IN(‘item’, ‘item’) SQL query, Generates a WHERE field IN(‘item’, ‘item’) SQL query, $values ( array) – The values searched on.Generates the WHERE portion of the query. $value ( mixed) – If a single key, compared to this value.$key ( mixed) – Name of field to compare, or associative array.$cond ( string) – The JOIN ON conditionĪdds a JOIN clause to a query.$from ( mixed) – Table name(s) string or array.Sets a flag which tells the query builder to addĪ DISTINCT clause to the SELECT portion of the query. $val ( bool) – Desired value of the “distinct” flag.$select ( string) – Field to compute the sum ofĪdds a SELECT SUM(field) clause to a query.$select ( string) – Field to compute the minimum ofĪdds a SELECT MIN(field) clause to a query.$select ( string) – Field to compute the maximum ofĪdds a SELECT MAX(field) clause to a query.$alias ( string) – Alias for the resulting value nameĪdds a SELECT AVG(field) clause to a query.$select ( string) – Field to compute the average of.$escape ( bool) – Whether to escape values and identifiersĪdds a SELECT clause to a query.$select ( string) – The SELECT portion of a query.Same as get(), but also allows the WHERE to be added directly. $table ( mixed) – The table(s) to fetch data from string or array.get ( ] ] ) ¶ Parameters:Ĭompiles and runs SELECT statement based on the alreadyĬalled Query Builder methods. Generates a platform-specific query string that countsĪll records returned by an Query Builder query. $reset ( bool) – Whether to reset values for SELECTs.Prepends a database prefix, if one exists in configuration. $table ( string) – The table name to prefix.Sets the database prefix, without having to reconnect. $prefix ( string) – The new prefix to use.flush_cache ( ) ¶ Returns:Įmpties the Query Builder cache. To build a query that can be cancelled under certain conditions.
Class Reference ¶ class CI_DB_query_builder ¶ reset_query ( ) ¶ Returns:ĬI_DB_query_builder instance (method chaining)
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