stmt:bind_parameter_count
Returns the largest parameter index
Prototype
stmt:bind_parameter_count()Description
Returns the largest statement parameter index in prepared statement stmt. When the statement parameters are of the forms ``:AAA'' or ``?'', then they are assigned sequentially increasing numbers beginning with one, so the value returned is the number of parameters. However if the same statement parameter name is used multiple times, each occurrence is given the same number, so the value returned is the number of unique statement parameter names.
If statement parameters of the form ``?NNN'' are used (where NNN is an integer) then there might be gaps in the numbering and the value returned by this interface is the index of the statement parameter with the largest index value.
If statement parameters of the form ``?NNN'' are used (where NNN is an integer) then there might be gaps in the numbering and the value returned by this interface is the index of the statement parameter with the largest index value.
Lua functions
- context:aggregate_count - Returns the number of calls to the aggregate step function.
- context:get_aggregate_data - Returns the user-definable data field for callback functions.
- context:result - This function sets the result of a callback function to res.
- context:result_blob - This function sets the result of a callback function to the binary string in blob.
- context:result_error - This function sets the result of a callback function to the error value in err.
- context:result_int - This function sets the result of a callback function to the integer value in number
- context:result_null - This function sets the result of a callback function to nil.
- context:result_number - This function sets the result of a callback function to the value number.
- context:result_text - This function sets the result of a callback function to the string in str.
- context:set_aggregate_data - Set the user-definable data field for callback functions to udata.
- context:user_data - Returns the userdata parameter given in the call to install the callback function.
- db:busy_handler - Sets or removes a busy handler for a database
- db:busy_timeout - Sets a busy handler
- db:changes - Returns number of changes by the most recent SQL statement
- db:close - Closes a database
- db:close_vm - Finalizes all statements that have not been explicitly finalized
- db:create_aggregate - Creates an aggregate callback function
- db:create_collation - Creates a collation callback
- db:create_function - Creates a callback function
- db:errcode - Returns the most recent result code
- db:errmsg - Returns the most recent error message
- db:exec - Executes SQL statements
- db:interrupt - Interrupts any pending operation
- db:isopen - Tests if the database is open
- db:last_insert_rowid - Returns the key of the most recent insert into the database
- db:nrows - Creates an iterator that returns a table of rows from a SELECT - keyed by name
- db:prepare - Compiles an SQL statement
- db:progress_handler - Installs a progress callback function
- db:rows - Creates an iterator that returns a table of rows from a SELECT - numerically keyed
- db:total_changes - Returns total number of changes
- db:trace - Installs debug trace callback
- db:urows - Creates an iterator that returns the rows from a SELECT
- sqlite3.complete - Checks for a complete SQL statement
- sqlite3.open - Opens or creates a database
- sqlite3.open_memory - Opens a database in memory
- sqlite3.version - Returns the SQLite version
- stmt:bind - Binds a value to a parameter
- stmt:bind_blob - Binds a blob to a parameter
- stmt:bind_names - Binds values in a table to parameters
- stmt:bind_parameter_name - Returns the name of the n'th paremeter
- stmt:bind_values - Binds values to parameters
- stmt:columns - Returns number of columns in the result set
- stmt:finalize - Frees a prepared statement
- stmt:get_name - Returns the name of a column in a result set
- stmt:get_named_types - Returns a table of names and types for the columns in a result set
- stmt:get_named_values - Returns a table of names and values for the columns in a result set
- stmt:get_names - Returns a table of the names of all columns in a result set
- stmt:get_type - Returns the type of a column in a result set
- stmt:get_types - Returns a table of the types of all columns in a result set
- stmt:get_unames - Returns a list of names of the columns in a result set
- stmt:get_utypes - Returns a list of types of the columns in a result set
- stmt:get_uvalues - Returns a list of values of the columns in a result set
- stmt:get_value - Returns the value of a column in a result set
- stmt:get_values - Returns a table of the values of all columns in a result set
- stmt:isopen - Checks if the statement is open
- stmt:nrows - Creates an iterator that returns a table of rows from a SELECT - keyed by name
- stmt:reset - Resets an SQL statement, so it can be executed again
- stmt:rows - Creates an iterator that returns a table of rows from a SELECT - numerically keyed
- stmt:step - Executes a previously-prepared SQL statement
- stmt:urows - Creates an iterator that returns the rows from a SELECT