Converts a alphanumeric string in a ''sql'' operator. The string format to convert is identical to what a user enters when making a selection in an input field of an object, or on a variable of construct type.

So, in the expression to convert there is wildcars characters, such as those used in an input field of an object. Convertion rules to be considered:

The character | separing two strings or two numbers is converted to an operator IN. For example "alb" is converted IN ('a', 'b').
The character : separing two strings or two numbers is converted in a operator BETWEEN. For example "A:Z" sis converted BETWEEN 'A' AND 'Z'.
The tag <null /> is converted in the operator IS NULL.
The character % inside of a string is converted in an operator LIKE. For example "PREFIX%" is replaced by LIKE "PREFIX%".
The character _ inside of a string is converted in an operator LIKE.
A string without wildcar or a number is converted in an operator =. For example "580", will be converted to = 580.

1 sql.getQueryOperator

<sql.getQueryOperator type='string|integer'>
    <value /> !
</sql.getQueryOperator>

Attributes
Name	Type	Required	Default	Description
Atype	string				Indicate the data type on which the operator is established.

Arguments
Name	Type	Required	Unique	Nullable	Description
Evalue	string				String to convert in operator SQL.

Returns
Type	Description
string	Returns the operator SQL which corresponds to the string parameter.

Example

Example with several operators.

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<xsql-script name='test_getQueryOperator'>
    <body>
        <println><string.ht />1|2<string.ht />==><string.ht /><sql.getQueryOperator type='number'>1|2</sql.getQueryOperator></println>
        <println><string.ht />a|b|c<string.ht />==><string.ht /><sql.getQueryOperator type='string'>a|b|c</sql.getQueryOperator></println>
        <println><string.ht />a:b<string.ht />==><string.ht /><sql.getQueryOperator type='string'>a:b</sql.getQueryOperator></println>
        <println><string.ht />a<string.ht />==><string.ht /><sql.getQueryOperator type='string'>a</sql.getQueryOperator></println>
        <println><string.ht />A%<string.ht />==><string.ht /><sql.getQueryOperator type='string'>A%</sql.getQueryOperator></println>
        <println><string.ht />A_<string.ht />==><string.ht /><sql.getQueryOperator type='string'>A_</sql.getQueryOperator></println>
        <println><string.ht /><null /><string.ht />==><string.ht /><sql.getQueryOperator type='string'><null /></sql.getQueryOperator></println>
    </body>
</xsql-script>

Result of the execution:

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1|2     ==>      IN (1,2)
    a|b|c   ==>      IN ('a','b','c')
    a:b     ==>      BETWEEN 'a' AND 'b'
    a       ==>      = 'a'
    A%      ==>      LIKE 'A%'
    A_      ==>      LIKE 'A_'
    null    ==>      IS NULL