in-clause

问题 This question already has an answer here: PreparedStatement IN clause alternatives? 28 answers Say that I have a query of the form SELECT * FROM MYTABLE WHERE MYCOL in (?) And I want to parameterize the arguments to in. Is there a straightforward way to do this in Java with JDBC, in a way that could work on multiple databases without modifying the SQL itself? The closest question I\'ve found had to do with C#, I\'m wondering if there is something different for Java/JDBC. 回答1: There's indeed

问题 This question already has answers here : PreparedStatement IN clause alternatives? (28 answers) Closed last year . How to set value for in clause in a preparedStatement in JDBC while executing a query. Example: connection.prepareStatement(\"Select * from test where field in (?)\"); If this in-clause can hold multiple values how can I do it. Sometimes I know the list of parameters beforehand or sometimes I don\'t know beforehand. How to handle this case? 回答1: What I do is to add a "?" for each

问题 I\'m using PDO to execute a statement with an IN clause that uses an array for it\'s values: $in_array = array(1, 2, 3); $in_values = implode(\',\', $in_array); $my_result = $wbdb->prepare(\"SELECT * FROM my_table WHERE my_value IN (\".$in_values.\")\"); $my_result->execute(); $my_results = $my_result->fetchAll(); The above code works perfectly fine, but my question is why this doesn\'t: $in_array = array(1, 2, 3); $in_values = implode(\',\', $in_array); $my_result = $wbdb->prepare(\"SELECT *

问题 What are the best workarounds for using a SQL IN clause with instances of java.sql.PreparedStatement , which is not supported for multiple values due to SQL injection attack security issues: One ? placeholder represents one value, rather than a list of values. Consider the following SQL statement: SELECT my_column FROM my_table where search_column IN (?) Using preparedStatement.setString( 1, \"\'A\', \'B\', \'C\'\" ); is essentially a non-working attempt at a workaround of the reasons for