dbmaker

package module
v0.0.0-...-5e953f3 Latest Latest
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 Go to latest Published: Jun 27, 2017 License: BSD-3-Clause Imports: 12 Imported by: 0

README

dbmaker driver is the odbc-compatible driver for DBMaker database management system. It calls into dmapi54.dll on Windows, and use cgo dynamic linked to libdmapic.so on Linux. NOTE, dbmaker doesn't use unixODBC or windows ODBC Driver Manager.

On windows, you should add the path contains dmapi54.dll into the env variable %PATH%, then run your program. e.g.

set PATH=C:\DBMaker\5.4\bin;%PATH%
go test github.com/dbmaker-go/dbmaker

If you want to switch to DBMaker 5.5, you should modify zapi_windows.go to load dmapi55.dll

  moddmapi54 = syscall.NewLazyDLL("dmapi55.dll")

On linux, you can modify cgo linux LDFLAGS/CFLAGS of api_unix.go/zapi_unix.go to swith to DBMaker 5.5.

The cgo flags for static linking to libdmapic.a:

// #cgo linux LDFLAGS: -ldmapic -ldl -lm -L/home/dbmaker/5.4/lib
// #cgo linux CFLAGS: -I/home/dbmaker/5.4/include
// #include "sql.h"
// #include "sqlext.h"

For dynamic linking to libdmapic.so:

// #cgo linux LDFLAGS: -ldmapic  -L/home/dbmaker/5.4/lib/so
// #cgo linux CFLAGS: -I/home/dbmaker/5.4/include
// #include "sql.h"
// #include "sqlext.h"

If using libdmapic.so, env variable LD_LIBRARY_PATH must contain the path in where libdmapic.so resided. e.g.:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/dbmaker/5.4/lib/so
go test github.com/dbmaker-go/dbmaker ## need start DBSAMPLE5 DB before hand.

A simple example:

import (
    "database/sql"
    _ "github.com/dbmaker-go/dbmaker"
)

func main(){
	db, err := sql.Open("dbmaker","DSN=DB1;UID=SYSADM;PWD=xxx;");
	db.Query(...)
	//...
}

For more information about DBMaker, please refer to www.dbmaker.com.tw .

Documentation

Overview

Package odbc implements database/sql driver to access data via odbc interface.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func IsError 

func IsError(ret api.SQLRETURN) bool

func NewError 

func NewError(apiName string, handle interface{}) error

func ToHandleAndType 

func ToHandleAndType(handle interface{}) (h api.SQLHANDLE, ht api.SQLSMALLINT)

Types

type BaseColumn 

type BaseColumn struct {
	CType api.SQLSMALLINT
	// contains filtered or unexported fields
}

BaseColumn implements common column functionality.

func (*BaseColumn) Name 

func (c *BaseColumn) Name() string

func (*BaseColumn) Value 

func (c *BaseColumn) Value(buf []byte) (driver.Value, error)

type BindableColumn 

type BindableColumn struct {
	*BaseColumn
	IsBound         bool
	IsVariableWidth bool
	Size            int
	Len             BufferLen
	Buffer          []byte
}

BindableColumn allows access to columns that can have their buffers bound. Once bound at start, they are written to by odbc driver every time it fetches new row. This saves on syscall and, perhaps, some buffer copying. BindableColumn can be left unbound, then it behaves like NonBindableColumn when user reads data from it.

func NewBindableColumn 

func NewBindableColumn(b *BaseColumn, ctype api.SQLSMALLINT, bufSize int) *BindableColumn

func (*BindableColumn) Bind 

func (c *BindableColumn) Bind(h api.SQLHSTMT, idx int) (bool, error)

func (*BindableColumn) Value 

func (c *BindableColumn) Value(h api.SQLHSTMT, idx int) (driver.Value, error)

type BufferLen 

type BufferLen api.SQLLEN

func (*BufferLen) Bind 

func (l *BufferLen) Bind(h api.SQLHSTMT, idx int, ctype api.SQLSMALLINT, buf []byte) api.SQLRETURN

func (*BufferLen) GetData 

func (l *BufferLen) GetData(h api.SQLHSTMT, idx int, ctype api.SQLSMALLINT, buf []byte) api.SQLRETURN

func (*BufferLen) IsNull 

func (l *BufferLen) IsNull() bool

type Column 

type Column interface {
	Name() string
	Bind(h api.SQLHSTMT, idx int) (bool, error)
	Value(h api.SQLHSTMT, idx int) (driver.Value, error)
}

Column provides access to row columns.

func NewColumn 

func NewColumn(h api.SQLHSTMT, idx int) (Column, error)

func NewVariableWidthColumn 

func NewVariableWidthColumn(b *BaseColumn, ctype api.SQLSMALLINT, colWidth api.SQLULEN) Column

type Conn 

type Conn struct {
	// contains filtered or unexported fields
}

func (*Conn) Begin 

func (c *Conn) Begin() (driver.Tx, error)

func (*Conn) Close 

func (c *Conn) Close() (err error)

func (*Conn) Prepare 

func (c *Conn) Prepare(query string) (driver.Stmt, error)

func (*Conn) PrepareODBCStmt 

func (c *Conn) PrepareODBCStmt(query string) (*ODBCStmt, error)

type DiagRecord 

type DiagRecord struct {
	State       string
	NativeError int
	Message     string
}

func (*DiagRecord) String 

func (r *DiagRecord) String() string

type Driver 

type Driver struct {
	Stats
	// contains filtered or unexported fields
}

func (*Driver) Close 

func (d *Driver) Close() error

func (*Driver) Open 

func (d *Driver) Open(dsn string) (driver.Conn, error)

type Error 

type Error struct {
	APIName string
	Diag    []DiagRecord
}

func (*Error) Error 

func (e *Error) Error() string

type NonBindableColumn 

type NonBindableColumn struct {
	*BaseColumn
}

NonBindableColumn provide access to columns, that can't be bound. These are of character or binary type, and, usually, there is no limit for their width.

func (*NonBindableColumn) Bind 

func (c *NonBindableColumn) Bind(h api.SQLHSTMT, idx int) (bool, error)

func (*NonBindableColumn) Value 

func (c *NonBindableColumn) Value(h api.SQLHSTMT, idx int) (driver.Value, error)

type ODBCStmt 

type ODBCStmt struct {
	Parameters []Parameter
	Cols       []Column
	// contains filtered or unexported fields
}

func (*ODBCStmt) BindColumns 

func (s *ODBCStmt) BindColumns() error

func (*ODBCStmt) Exec 

func (s *ODBCStmt) Exec(args []driver.Value) error

type Parameter 

type Parameter struct {
	SQLType api.SQLSMALLINT
	Decimal api.SQLSMALLINT
	Size    api.SQLULEN

	// Following fields store data used later by SQLExecute.
	// The fields keep data alive and away from gc.
	Data             interface{}
	StrLen_or_IndPtr api.SQLLEN
	// contains filtered or unexported fields
}

func ExtractParameters 

func ExtractParameters(h api.SQLHSTMT) ([]Parameter, error)

func (*Parameter) BindValue 

func (p *Parameter) BindValue(h api.SQLHSTMT, idx int, v driver.Value) error

func (*Parameter) StoreStrLen_or_IndPtr 

func (p *Parameter) StoreStrLen_or_IndPtr(v api.SQLLEN) *api.SQLLEN

StoreStrLen_or_IndPtr stores v into StrLen_or_IndPtr field of p and returns address of that field.

type Result 

type Result struct {
	// contains filtered or unexported fields
}

func (*Result) LastInsertId 

func (r *Result) LastInsertId() (int64, error)

func (*Result) RowsAffected 

func (r *Result) RowsAffected() (int64, error)

type Rows 

type Rows struct {
	// contains filtered or unexported fields
}

func (*Rows) Close 

func (r *Rows) Close() error

func (*Rows) Columns 

func (r *Rows) Columns() []string

func (*Rows) Next 

func (r *Rows) Next(dest []driver.Value) error

type Stats 

type Stats struct {
	EnvCount  int
	ConnCount int
	StmtCount int
	// contains filtered or unexported fields
}

type Stmt 

type Stmt struct {
	// contains filtered or unexported fields
}

func (*Stmt) Close 

func (s *Stmt) Close() error

func (*Stmt) Exec 

func (s *Stmt) Exec(args []driver.Value) (driver.Result, error)

func (*Stmt) NumInput 

func (s *Stmt) NumInput() int

func (*Stmt) Query 

func (s *Stmt) Query(args []driver.Value) (driver.Rows, error)

type Tx 

type Tx struct {
	// contains filtered or unexported fields
}

func (*Tx) Commit 

func (tx *Tx) Commit() error

func (*Tx) Rollback 

func (tx *Tx) Rollback() error

Source Files

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Directories

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