sqlbindparameter

What is the type of NULL in mysqli bind_param?

由 本小妞迷上赌 提交于 2019-12-08 17:45:40
问题 I am trying to bind params to a INSERT INTO MySQLi prepared statement if that variable exists, otherwise insert null.Then i know type variable i corresponding variable has type integer d corresponding variable has type double s corresponding variable has type string b corresponding variable is a blob and will be sent in packets but when i insert a variable = null,how i define the type of the variable? Or should i define the type is ''? 回答1: You do not need to cast null to a particular data

Execute sql statement via JDBC with CLOB binding

由 ↘锁芯ラ 提交于 2019-12-08 06:37:40
问题 I have the following query (column log is of type CLOB): UPDATE table SET log=? where id=? The query above works fine when using the setAsciiStream method to put a value longer than 4000 characters into the log column. But instead of replacing the value, I want to append it, hence my query looks like this: UPDATE table SET log=log||?||chr(10) where id=? The above query DOES NOT work any more and I get the following error: java.sql.SQLException: ORA-01461: can bind a LONG value only for insert

C++ SQLBindParameter

由 痴心易碎 提交于 2019-12-06 03:48:26
问题 Here are the declarations of the variables: string strFirstName; string strLastName; string strAddress; string strCity; string strState; double dblSalary; string strGender; int intAge; ...Do some "cin" statements to get data... retcode = SQLPrepare(StatementHandle, (SQLCHAR *)"INSERT INTO EMPLOYEE ([FirstName], [LastName], [Address], [City], [State], [Salary], [Gender],[Age]) VALUES (?,?,?,?,?,?,?,?)", SQL_NTS); retcode = SQLBindParameter(StatementHandle, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL

C++ SQLBindParameter

由 为君一笑 提交于 2019-12-04 08:38:51
Here are the declarations of the variables: string strFirstName; string strLastName; string strAddress; string strCity; string strState; double dblSalary; string strGender; int intAge; ...Do some "cin" statements to get data... retcode = SQLPrepare(StatementHandle, (SQLCHAR *)"INSERT INTO EMPLOYEE ([FirstName], [LastName], [Address], [City], [State], [Salary], [Gender],[Age]) VALUES (?,?,?,?,?,?,?,?)", SQL_NTS); retcode = SQLBindParameter(StatementHandle, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_LONGVARCHAR, 50, 0 &strFirstName,0, NULL); retcode = SQLBindParameter(StatementHandle, 2, SQL_PARAM

Do I need to escape data to protect against SQL injection when using bind_param() on MySQLi?

由 烂漫一生 提交于 2019-12-01 04:27:30
As the title says, do I have to escape user input when using bind_param() or is that done internally? Thank you. No, you do not need to escape data to protect against SQL injection when binding parameters. This does not absolve you from validating said data though. When binding parameters, there is no escaping performed (internally or otherwise). An SQL statement is prepared with parameter placeholders and values for these are passed at execution time. The database knows what parameters are and treats them accordingly as opposed to SQL value interpolation. No. To quote this http://mysql

PDO - use LIKE in bindParam

由 被刻印的时光 ゝ 提交于 2019-12-01 00:21:21
I'm testing a small search feature: But I've come across an error that I cannot seem to solve. You can see the PDO query here: $search = "test1"; //later to be changes to $_POST ['search']; $sql = "SELECT id, name FROM clients WHERE name LIKE CONCAT('%',:name,'%')"; $stm = $db->prepare ($sql); $stm->bindParam ( ":name", $search ); $stm->execute (); $result = $stm->fetchAll(); As you can see, I'm trying to bind the parameter %:name% from my query, but I don't know if that's actually possible? I revieve the error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]:..... And I can

INSERT into DB table with PDO prepare and bindParam

由 China☆狼群 提交于 2019-11-29 09:43:02
问题 In simple terms can someone explain what I am doing wrong here - I am simply trying to insert into a db with with prepare and bindParam, this is inserting 0 and Null into all the fields. $sql = $db->prepare("INSERT INTO db_fruit VALUES (id=? ,type=? ,colour=?)"); $sql->bindParam(1, $newId); $sql->bindParam(2, $type); $sql->bindParam(3, $colour); $sql->execute() btw: this method has been working for me for UPDATE etc, but not in this case for INSERT 回答1: Your syntax is incorrect, try this:

PDO prepared statements for INSERT and ON DUPLICATE KEY UPDATE with named placeholders

由 六月ゝ 毕业季﹏ 提交于 2019-11-27 16:23:46
问题 I'd like to switch PDO INSERT and UPDATE prepared statements to INSERT and ON DUPLICATE KEY UPDATE since I think it'll be a lot more efficient than what I'm currently doing, but I'm having trouble figuring out the correct syntax to use with named placeholders and bindParam. I found several similar question on SO, but I'm new to PDO and couldn't successfully adapt the code for my criteria. This is what I've tried, but it doesn't work (it doesn't insert or update): try { $stmt = $conn->prepare(

Dynamically bind mysqli_stmt parameters and then bind result (PHP)

由 徘徊边缘 提交于 2019-11-27 14:30:43
I'm trying to dynamically bind mysql_stmt parameters and get the result in an associative array. I've found this post here on stackoverflow where Amber posted an answer with the following code: Original post: How to make a proper mysqli extension class with prepared statements? "Assuming you're actually wanting to write your own version (as opposed to utilizing one of the existing libraries other answers have suggested - and those are good options, too)... Here are a couple of functions which you may find it useful to examine. The first allows you to bind the results of a query to an

Bind_param Non-Object Error w/ mysqli

由 拈花ヽ惹草 提交于 2019-11-27 08:08:56
问题 When attempting to insert the initial row for a table that will track daily views, I am getting the error: Fatal error : Call to a member function bind_param() on a non-object in /.../functions.php on line 157 That line is the last of the following group: if($stats_found) { $sqlquery = "UPDATE vid_stats SET views = ? WHERE title = ? AND format = ? AND date = ? AND results = ?"; $views++; } else { $sqlquery = "INSERT INTO vid_stats (views, title, format, results) values (?, ?, ?, ? )"; $views
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