以下是关于SQLAPI函数的源代码,可以通过其查找关于底层对数据库访问的相关资料,重点在584行以后,你懂的

/*****************************************************************
** SQL.H - This is the the main include for ODBC Core functions.
**
** preconditions:
** #include "windows.h"
**
** (C) Copyright 1990 - 1998 By Microsoft Corp.
**
** Updated 5/12/93 for 2.00 specification
** Updated 5/23/94 for 2.01 specification
** Updated 11/10/94 for 2.10 specification
** Updated 04/10/95 for 2.50 specification
** Updated 6/6/95 for 3.00 specification
** Updated 10/22/97 for 3.51 specification
*********************************************************************/


#ifndef __SQL
#define __SQL

/*
* ODBCVER ODBC version number (0x0351). To exclude
* definitions introduced in version 3.5 (or above)
* #define ODBCVER 0x0300 before #including <sql.h>
*/
#ifndef ODBCVER
#define ODBCVER 0x0351
#endif

#ifndef __SQLTYPES
#include "sqltypes.h"
#endif

#ifdef __cplusplus
extern "C" { /* Assume C declarations for C++ */
#endif /* __cplusplus */

/* special length/indicator values */
#define SQL_NULL_DATA (-1)
#define SQL_DATA_AT_EXEC (-2)


/* return values from functions */
#define SQL_SUCCESS 0
#define SQL_SUCCESS_WITH_INFO 1
#if (ODBCVER >= 0x0300)
#define SQL_NO_DATA 100
#endif
#define SQL_ERROR (-1)
#define SQL_INVALID_HANDLE (-2)

#define SQL_STILL_EXECUTING 2
#define SQL_NEED_DATA 99

/* test for SQL_SUCCESS or SQL_SUCCESS_WITH_INFO */
#define SQL_SUCCEEDED(rc) (((rc)&(~1))==0)

/* flags for null-terminated string */
#define SQL_NTS (-3)
#define SQL_NTSL (-3L)

/* maximum message length */
#define SQL_MAX_MESSAGE_LENGTH 512

/* date/time length constants */
#if (ODBCVER >= 0x0300)
#define SQL_DATE_LEN 10
#define SQL_TIME_LEN 8 /* add P+1 if precision is nonzero */
#define SQL_TIMESTAMP_LEN 19 /* add P+1 if precision is nonzero */
#endif

/* handle type identifiers */
#if (ODBCVER >= 0x0300)
#define SQL_HANDLE_ENV 1
#define SQL_HANDLE_DBC 2
#define SQL_HANDLE_STMT 3
#define SQL_HANDLE_DESC 4
#endif

/* environment attribute */
#if (ODBCVER >= 0x0300)
#define SQL_ATTR_OUTPUT_NTS 10001
#endif

/* connection attributes */
#if (ODBCVER >= 0x0300)
#define SQL_ATTR_AUTO_IPD 10001
#define SQL_ATTR_METADATA_ID 10014
#endif /* ODBCVER >= 0x0300 */

/* statement attributes */
#if (ODBCVER >= 0x0300)
#define SQL_ATTR_APP_ROW_DESC 10010
#define SQL_ATTR_APP_PARAM_DESC 10011
#define SQL_ATTR_IMP_ROW_DESC 10012
#define SQL_ATTR_IMP_PARAM_DESC 10013
#define SQL_ATTR_CURSOR_SCROLLABLE (-1)
#define SQL_ATTR_CURSOR_SENSITIVITY (-2)
#endif

/* SQL_ATTR_CURSOR_SCROLLABLE values */
#if (ODBCVER >= 0x0300)
#define SQL_NONSCROLLABLE 0
#define SQL_SCROLLABLE 1
#endif /* ODBCVER >= 0x0300 */

/* identifiers of fields in the SQL descriptor */
#if (ODBCVER >= 0x0300)
#define SQL_DESC_COUNT 1001
#define SQL_DESC_TYPE 1002
#define SQL_DESC_LENGTH 1003
#define SQL_DESC_OCTET_LENGTH_PTR 1004
#define SQL_DESC_PRECISION 1005
#define SQL_DESC_SCALE 1006
#define SQL_DESC_DATETIME_INTERVAL_CODE 1007
#define SQL_DESC_NULLABLE 1008
#define SQL_DESC_INDICATOR_PTR 1009
#define SQL_DESC_DATA_PTR 1010
#define SQL_DESC_NAME 1011
#define SQL_DESC_UNNAMED 1012
#define SQL_DESC_OCTET_LENGTH 1013
#define SQL_DESC_ALLOC_TYPE 1099
#endif

/* identifiers of fields in the diagnostics area */
#if (ODBCVER >= 0x0300)
#define SQL_DIAG_RETURNCODE 1
#define SQL_DIAG_NUMBER 2
#define SQL_DIAG_ROW_COUNT 3
#define SQL_DIAG_SQLSTATE 4
#define SQL_DIAG_NATIVE 5
#define SQL_DIAG_MESSAGE_TEXT 6
#define SQL_DIAG_DYNAMIC_FUNCTION 7
#define SQL_DIAG_CLASS_ORIGIN 8
#define SQL_DIAG_SUBCLASS_ORIGIN 9
#define SQL_DIAG_CONNECTION_NAME 10
#define SQL_DIAG_SERVER_NAME 11
#define SQL_DIAG_DYNAMIC_FUNCTION_CODE 12
#endif

/* dynamic function codes */
#if (ODBCVER >= 0x0300)
#define SQL_DIAG_ALTER_DOMAIN 3
#define SQL_DIAG_ALTER_TABLE 4
#define SQL_DIAG_CALL 7
#define SQL_DIAG_CREATE_ASSERTION 6
#define SQL_DIAG_CREATE_CHARACTER_SET 8
#define SQL_DIAG_CREATE_COLLATION 10
#define SQL_DIAG_CREATE_DOMAIN 23
#define SQL_DIAG_CREATE_INDEX (-1)
#define SQL_DIAG_CREATE_SCHEMA 64
#define SQL_DIAG_CREATE_TABLE 77
#define SQL_DIAG_CREATE_TRANSLATION 79
#define SQL_DIAG_CREATE_VIEW 84
#define SQL_DIAG_DELETE_WHERE 19
#define SQL_DIAG_DROP_ASSERTION 24
#define SQL_DIAG_DROP_CHARACTER_SET 25
#define SQL_DIAG_DROP_COLLATION 26
#define SQL_DIAG_DROP_DOMAIN 27
#define SQL_DIAG_DROP_INDEX (-2)
#define SQL_DIAG_DROP_SCHEMA 31
#define SQL_DIAG_DROP_TABLE 32
#define SQL_DIAG_DROP_TRANSLATION 33
#define SQL_DIAG_DROP_VIEW 36
#define SQL_DIAG_DYNAMIC_DELETE_CURSOR 38
#define SQL_DIAG_DYNAMIC_UPDATE_CURSOR 81
#define SQL_DIAG_GRANT 48
#define SQL_DIAG_INSERT 50
#define SQL_DIAG_REVOKE 59
#define SQL_DIAG_SELECT_CURSOR 85
#define SQL_DIAG_UNKNOWN_STATEMENT 0
#define SQL_DIAG_UPDATE_WHERE 82
#endif /* ODBCVER >= 0x0300 */

/* SQL data type codes */
#define SQL_UNKNOWN_TYPE 0
#define SQL_CHAR 1
#define SQL_NUMERIC 2
#define SQL_DECIMAL 3
#define SQL_INTEGER 4
#define SQL_SMALLINT 5
#define SQL_FLOAT 6
#define SQL_REAL 7
#define SQL_DOUBLE 8
#if (ODBCVER >= 0x0300)
#define SQL_DATETIME 9
#endif
#define SQL_VARCHAR 12

/* One-parameter shortcuts for date/time data types */
#if (ODBCVER >= 0x0300)
#define SQL_TYPE_DATE 91
#define SQL_TYPE_TIME 92
#define SQL_TYPE_TIMESTAMP 93
#endif

/* Statement attribute values for cursor sensitivity */
#if (ODBCVER >= 0x0300)
#define SQL_UNSPECIFIED 0
#define SQL_INSENSITIVE 1
#define SQL_SENSITIVE 2
#endif

/* GetTypeInfo() request for all data types */
#define SQL_ALL_TYPES 0

/* Default conversion code for SQLBindCol(), SQLBindParam() and SQLGetData() */
#if (ODBCVER >= 0x0300)
#define SQL_DEFAULT 99
#endif

/* SQLGetData() code indicating that the application row descriptor
* specifies the data type
*/
#if (ODBCVER >= 0x0300)
#define SQL_ARD_TYPE (-99)
#endif

/* SQL date/time type subcodes */
#if (ODBCVER >= 0x0300)
#define SQL_CODE_DATE 1
#define SQL_CODE_TIME 2
#define SQL_CODE_TIMESTAMP 3
#endif

/* CLI option values */
#if (ODBCVER >= 0x0300)
#define SQL_FALSE 0
#define SQL_TRUE 1
#endif

/* values of NULLABLE field in descriptor */
#define SQL_NO_NULLS 0
#define SQL_NULLABLE 1

/* Value returned by SQLGetTypeInfo() to denote that it is
* not known whether or not a data type supports null values.
*/
#define SQL_NULLABLE_UNKNOWN 2

/* Values returned by SQLGetTypeInfo() to show WHERE clause
* supported
*/
#if (ODBCVER >= 0x0300)
#define SQL_PRED_NONE 0
#define SQL_PRED_CHAR 1
#define SQL_PRED_BASIC 2
#endif

/* values of UNNAMED field in descriptor */
#if (ODBCVER >= 0x0300)
#define SQL_NAMED 0
#define SQL_UNNAMED 1
#endif

/* values of ALLOC_TYPE field in descriptor */
#if (ODBCVER >= 0x0300)
#define SQL_DESC_ALLOC_AUTO 1
#define SQL_DESC_ALLOC_USER 2
#endif

/* FreeStmt() options */
#define SQL_CLOSE 0
#define SQL_DROP 1
#define SQL_UNBIND 2
#define SQL_RESET_PARAMS 3

/* Codes used for FetchOrientation in SQLFetchScroll(),
and in SQLDataSources()
*/
#define SQL_FETCH_NEXT 1
#define SQL_FETCH_FIRST 2

/* Other codes used for FetchOrientation in SQLFetchScroll() */
#define SQL_FETCH_LAST 3
#define SQL_FETCH_PRIOR 4
#define SQL_FETCH_ABSOLUTE 5
#define SQL_FETCH_RELATIVE 6

/* SQLEndTran() options */
#define SQL_COMMIT 0
#define SQL_ROLLBACK 1

/* null handles returned by SQLAllocHandle() */
#define SQL_NULL_HENV 0
#define SQL_NULL_HDBC 0
#define SQL_NULL_HSTMT 0
#if (ODBCVER >= 0x0300)
#define SQL_NULL_HDESC 0
#endif

/* null handle used in place of parent handle when allocating HENV */
#if (ODBCVER >= 0x0300)
#define SQL_NULL_HANDLE 0L
#endif

/* Values that may appear in the result set of SQLSpecialColumns() */
#define SQL_SCOPE_CURROW 0
#define SQL_SCOPE_TRANSACTION 1
#define SQL_SCOPE_SESSION 2

#define SQL_PC_UNKNOWN 0
#if (ODBCVER >= 0x0300)
#define SQL_PC_NON_PSEUDO 1
#endif
#define SQL_PC_PSEUDO 2

/* Reserved value for the IdentifierType argument of SQLSpecialColumns() */
#if (ODBCVER >= 0x0300)
#define SQL_ROW_IDENTIFIER 1
#endif

/* Reserved values for UNIQUE argument of SQLStatistics() */
#define SQL_INDEX_UNIQUE 0
#define SQL_INDEX_ALL 1

/* Values that may appear in the result set of SQLStatistics() */
#define SQL_INDEX_CLUSTERED 1
#define SQL_INDEX_HASHED 2
#define SQL_INDEX_OTHER 3

/* SQLGetFunctions() values to identify ODBC APIs */
#define SQL_API_SQLALLOCCONNECT 1
#define SQL_API_SQLALLOCENV 2
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLALLOCHANDLE 1001
#endif
#define SQL_API_SQLALLOCSTMT 3
#define SQL_API_SQLBINDCOL 4
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLBINDPARAM 1002
#endif
#define SQL_API_SQLCANCEL 5
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLCLOSECURSOR 1003
#define SQL_API_SQLCOLATTRIBUTE 6
#endif
#define SQL_API_SQLCOLUMNS 40
#define SQL_API_SQLCONNECT 7
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLCOPYDESC 1004
#endif
#define SQL_API_SQLDATASOURCES 57
#define SQL_API_SQLDESCRIBECOL 8
#define SQL_API_SQLDISCONNECT 9
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLENDTRAN 1005
#endif
#define SQL_API_SQLERROR 10
#define SQL_API_SQLEXECDIRECT 11
#define SQL_API_SQLEXECUTE 12
#define SQL_API_SQLFETCH 13
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLFETCHSCROLL 1021
#endif
#define SQL_API_SQLFREECONNECT 14
#define SQL_API_SQLFREEENV 15
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLFREEHANDLE 1006
#endif
#define SQL_API_SQLFREESTMT 16
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLGETCONNECTATTR 1007
#endif
#define SQL_API_SQLGETCONNECTOPTION 42
#define SQL_API_SQLGETCURSORNAME 17
#define SQL_API_SQLGETDATA 43
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLGETDESCFIELD 1008
#define SQL_API_SQLGETDESCREC 1009
#define SQL_API_SQLGETDIAGFIELD 1010
#define SQL_API_SQLGETDIAGREC 1011
#define SQL_API_SQLGETENVATTR 1012
#endif
#define SQL_API_SQLGETFUNCTIONS 44
#define SQL_API_SQLGETINFO 45
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLGETSTMTATTR 1014
#endif
#define SQL_API_SQLGETSTMTOPTION 46
#define SQL_API_SQLGETTYPEINFO 47
#define SQL_API_SQLNUMRESULTCOLS 18
#define SQL_API_SQLPARAMDATA 48
#define SQL_API_SQLPREPARE 19
#define SQL_API_SQLPUTDATA 49
#define SQL_API_SQLROWCOUNT 20
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLSETCONNECTATTR 1016
#endif
#define SQL_API_SQLSETCONNECTOPTION 50
#define SQL_API_SQLSETCURSORNAME 21
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLSETDESCFIELD 1017
#define SQL_API_SQLSETDESCREC 1018
#define SQL_API_SQLSETENVATTR 1019
#endif
#define SQL_API_SQLSETPARAM 22
#if (ODBCVER >= 0x0300)
#define SQL_API_SQLSETSTMTATTR 1020
#endif
#define SQL_API_SQLSETSTMTOPTION 51
#define SQL_API_SQLSPECIALCOLUMNS 52
#define SQL_API_SQLSTATISTICS 53
#define SQL_API_SQLTABLES 54
#define SQL_API_SQLTRANSACT 23

/* Information requested by SQLGetInfo() */
#if (ODBCVER >= 0x0300)
#define SQL_MAX_DRIVER_CONNECTIONS 0
#define SQL_MAXIMUM_DRIVER_CONNECTIONS SQL_MAX_DRIVER_CONNECTIONS
#define SQL_MAX_CONCURRENT_ACTIVITIES 1
#define SQL_MAXIMUM_CONCURRENT_ACTIVITIES SQL_MAX_CONCURRENT_ACTIVITIES
#endif
#define SQL_DATA_SOURCE_NAME 2
#define SQL_FETCH_DIRECTION 8
#define SQL_SERVER_NAME 13
#define SQL_SEARCH_PATTERN_ESCAPE 14
#define SQL_DBMS_NAME 17
#define SQL_DBMS_VER 18
#define SQL_ACCESSIBLE_TABLES 19
#define SQL_ACCESSIBLE_PROCEDURES 20
#define SQL_CURSOR_COMMIT_BEHAVIOR 23
#define SQL_DATA_SOURCE_READ_ONLY 25
#define SQL_DEFAULT_TXN_ISOLATION 26
#define SQL_IDENTIFIER_CASE 28
#define SQL_IDENTIFIER_QUOTE_CHAR 29
#define SQL_MAX_COLUMN_NAME_LEN 30
#define SQL_MAXIMUM_COLUMN_NAME_LENGTH SQL_MAX_COLUMN_NAME_LEN
#define SQL_MAX_CURSOR_NAME_LEN 31
#define SQL_MAXIMUM_CURSOR_NAME_LENGTH SQL_MAX_CURSOR_NAME_LEN
#define SQL_MAX_SCHEMA_NAME_LEN 32
#define SQL_MAXIMUM_SCHEMA_NAME_LENGTH SQL_MAX_SCHEMA_NAME_LEN
#define SQL_MAX_CATALOG_NAME_LEN 34
#define SQL_MAXIMUM_CATALOG_NAME_LENGTH SQL_MAX_CATALOG_NAME_LEN
#define SQL_MAX_TABLE_NAME_LEN 35
#define SQL_SCROLL_CONCURRENCY 43
#define SQL_TXN_CAPABLE 46
#define SQL_TRANSACTION_CAPABLE SQL_TXN_CAPABLE
#define SQL_USER_NAME 47
#define SQL_TXN_ISOLATION_OPTION 72
#define SQL_TRANSACTION_ISOLATION_OPTION SQL_TXN_ISOLATION_OPTION
#define SQL_INTEGRITY 73
#define SQL_GETDATA_EXTENSIONS 81
#define SQL_NULL_COLLATION 85
#define SQL_ALTER_TABLE 86
#define SQL_ORDER_BY_COLUMNS_IN_SELECT 90
#define SQL_SPECIAL_CHARACTERS 94
#define SQL_MAX_COLUMNS_IN_GROUP_BY 97
#define SQL_MAXIMUM_COLUMNS_IN_GROUP_BY SQL_MAX_COLUMNS_IN_GROUP_BY
#define SQL_MAX_COLUMNS_IN_INDEX 98
#define SQL_MAXIMUM_COLUMNS_IN_INDEX SQL_MAX_COLUMNS_IN_INDEX
#define SQL_MAX_COLUMNS_IN_ORDER_BY 99
#define SQL_MAXIMUM_COLUMNS_IN_ORDER_BY SQL_MAX_COLUMNS_IN_ORDER_BY
#define SQL_MAX_COLUMNS_IN_SELECT 100
#define SQL_MAXIMUM_COLUMNS_IN_SELECT SQL_MAX_COLUMNS_IN_SELECT
#define SQL_MAX_COLUMNS_IN_TABLE 101
#define SQL_MAX_INDEX_SIZE 102
#define SQL_MAXIMUM_INDEX_SIZE SQL_MAX_INDEX_SIZE
#define SQL_MAX_ROW_SIZE 104
#define SQL_MAXIMUM_ROW_SIZE SQL_MAX_ROW_SIZE
#define SQL_MAX_STATEMENT_LEN 105
#define SQL_MAXIMUM_STATEMENT_LENGTH SQL_MAX_STATEMENT_LEN
#define SQL_MAX_TABLES_IN_SELECT 106
#define SQL_MAXIMUM_TABLES_IN_SELECT SQL_MAX_TABLES_IN_SELECT
#define SQL_MAX_USER_NAME_LEN 107
#define SQL_MAXIMUM_USER_NAME_LENGTH SQL_MAX_USER_NAME_LEN
#if (ODBCVER >= 0x0300)
#define SQL_OJ_CAPABILITIES 115
#define SQL_OUTER_JOIN_CAPABILITIES SQL_OJ_CAPABILITIES
#endif /* ODBCVER >= 0x0300 */

#if (ODBCVER >= 0x0300)
#define SQL_XOPEN_CLI_YEAR 10000
#define SQL_CURSOR_SENSITIVITY 10001
#define SQL_DESCRIBE_PARAMETER 10002
#define SQL_CATALOG_NAME 10003
#define SQL_COLLATION_SEQ 10004
#define SQL_MAX_IDENTIFIER_LEN 10005
#define SQL_MAXIMUM_IDENTIFIER_LENGTH SQL_MAX_IDENTIFIER_LEN
#endif /* ODBCVER >= 0x0300 */

/* SQL_ALTER_TABLE bitmasks */
#if (ODBCVER >= 0x0200)
#define SQL_AT_ADD_COLUMN 0x00000001L
#define SQL_AT_DROP_COLUMN 0x00000002L
#endif /* ODBCVER >= 0x0200 */

#if (ODBCVER >= 0x0300)
#define SQL_AT_ADD_CONSTRAINT 0x00000008L

/* The following bitmasks are ODBC extensions and defined in sqlext.h
*#define SQL_AT_COLUMN_SINGLE 0x00000020L
*#define SQL_AT_ADD_COLUMN_DEFAULT 0x00000040L
*#define SQL_AT_ADD_COLUMN_COLLATION 0x00000080L
*#define SQL_AT_SET_COLUMN_DEFAULT 0x00000100L
*#define SQL_AT_DROP_COLUMN_DEFAULT 0x00000200L
*#define SQL_AT_DROP_COLUMN_CASCADE 0x00000400L
*#define SQL_AT_DROP_COLUMN_RESTRICT 0x00000800L
*#define SQL_AT_ADD_TABLE_CONSTRAINT 0x00001000L
*#define SQL_AT_DROP_TABLE_CONSTRAINT_CASCADE 0x00002000L
*#define SQL_AT_DROP_TABLE_CONSTRAINT_RESTRICT 0x00004000L
*#define SQL_AT_CONSTRAINT_NAME_DEFINITION 0x00008000L
*#define SQL_AT_CONSTRAINT_INITIALLY_DEFERRED 0x00010000L
*#define SQL_AT_CONSTRAINT_INITIALLY_IMMEDIATE 0x00020000L
*#define SQL_AT_CONSTRAINT_DEFERRABLE 0x00040000L
*#define SQL_AT_CONSTRAINT_NON_DEFERRABLE 0x00080000L
*/
#endif /* ODBCVER >= 0x0300 */


/* SQL_ASYNC_MODE values */
#if (ODBCVER >= 0x0300)
#define SQL_AM_NONE 0
#define SQL_AM_CONNECTION 1
#define SQL_AM_STATEMENT 2
#endif

/* SQL_CURSOR_COMMIT_BEHAVIOR values */
#define SQL_CB_DELETE 0
#define SQL_CB_CLOSE 1
#define SQL_CB_PRESERVE 2

/* SQL_FETCH_DIRECTION bitmasks */
#define SQL_FD_FETCH_NEXT 0x00000001L
#define SQL_FD_FETCH_FIRST 0x00000002L
#define SQL_FD_FETCH_LAST 0x00000004L
#define SQL_FD_FETCH_PRIOR 0x00000008L
#define SQL_FD_FETCH_ABSOLUTE 0x00000010L
#define SQL_FD_FETCH_RELATIVE 0x00000020L

/* SQL_GETDATA_EXTENSIONS bitmasks */
#define SQL_GD_ANY_COLUMN 0x00000001L
#define SQL_GD_ANY_ORDER 0x00000002L

/* SQL_IDENTIFIER_CASE values */
#define SQL_IC_UPPER 1
#define SQL_IC_LOWER 2
#define SQL_IC_SENSITIVE 3
#define SQL_IC_MIXED 4

/* SQL_OJ_CAPABILITIES bitmasks */
/* NB: this means 'outer join', not what you may be thinking */


#if (ODBCVER >= 0x0201)
#define SQL_OJ_LEFT 0x00000001L
#define SQL_OJ_RIGHT 0x00000002L
#define SQL_OJ_FULL 0x00000004L
#define SQL_OJ_NESTED 0x00000008L
#define SQL_OJ_NOT_ORDERED 0x00000010L
#define SQL_OJ_INNER 0x00000020L
#define SQL_OJ_ALL_COMPARISON_OPS 0x00000040L
#endif

/* SQL_SCROLL_CONCURRENCY bitmasks */
#define SQL_SCCO_READ_ONLY 0x00000001L
#define SQL_SCCO_LOCK 0x00000002L
#define SQL_SCCO_OPT_ROWVER 0x00000004L
#define SQL_SCCO_OPT_VALUES 0x00000008L

/* SQL_TXN_CAPABLE values */
#define SQL_TC_NONE 0
#define SQL_TC_DML 1
#define SQL_TC_ALL 2
#define SQL_TC_DDL_COMMIT 3
#define SQL_TC_DDL_IGNORE 4

/* SQL_TXN_ISOLATION_OPTION bitmasks */
#define SQL_TXN_READ_UNCOMMITTED 0x00000001L
#define SQL_TRANSACTION_READ_UNCOMMITTED SQL_TXN_READ_UNCOMMITTED
#define SQL_TXN_READ_COMMITTED 0x00000002L
#define SQL_TRANSACTION_READ_COMMITTED SQL_TXN_READ_COMMITTED
#define SQL_TXN_REPEATABLE_READ 0x00000004L
#define SQL_TRANSACTION_REPEATABLE_READ SQL_TXN_REPEATABLE_READ
#define SQL_TXN_SERIALIZABLE 0x00000008L
#define SQL_TRANSACTION_SERIALIZABLE SQL_TXN_SERIALIZABLE

/* SQL_NULL_COLLATION values */
#define SQL_NC_HIGH 0
#define SQL_NC_LOW 1

#ifndef RC_INVOKED
///
///
SQLRETURN SQL_API SQLAllocConnect(SQLHENV EnvironmentHandle,SQLHDBC *ConnectionHandle);
SQLRETURN SQL_API SQLAllocEnv(SQLHENV *EnvironmentHandle);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLAllocHandle(SQLSMALLINT HandleType,SQLHANDLE InputHandle, SQLHANDLE *OutputHandle);
#endif
SQLRETURN SQL_API SQLAllocStmt(SQLHDBC ConnectionHandle,SQLHSTMT *StatementHandle);
SQLRETURN SQL_API SQLBindCol(SQLHSTMT StatementHandle, SQLUSMALLINT ColumnNumber, SQLSMALLINT TargetType, SQLPOINTER TargetValue, SQLINTEGER BufferLength, SQLINTEGER *StrLen_or_Ind);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLBindParam(SQLHSTMT StatementHandle,SQLUSMALLINT ParameterNumber, SQLSMALLINT ValueType,SQLSMALLINT ParameterType, SQLUINTEGER LengthPrecision,SQLSMALLINT ParameterScale, SQLPOINTER ParameterValue,SQLINTEGER *StrLen_or_Ind);
#endif
SQLRETURN SQL_API SQLCancel(SQLHSTMT StatementHandle);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLCloseCursor(SQLHSTMT StatementHandle);
SQLRETURN SQL_API SQLColAttribute (SQLHSTMT StatementHandle,SQLUSMALLINT ColumnNumber, SQLUSMALLINT FieldIdentifier,SQLPOINTER CharacterAttribute, SQLSMALLINT BufferLength,SQLSMALLINT *StringLength, SQLPOINTER NumericAttribute);
#endif
SQLRETURN SQL_API SQLColumns(SQLHSTMT StatementHandle,SQLCHAR *CatalogName, SQLSMALLINT NameLength1,SQLCHAR *SchemaName, SQLSMALLINT NameLength2,SQLCHAR *TableName, SQLSMALLINT NameLength3,SQLCHAR *ColumnName, SQLSMALLINT NameLength4);
SQLRETURN SQL_API SQLConnect(SQLHDBC ConnectionHandle,SQLCHAR *ServerName, SQLSMALLINT NameLength1,SQLCHAR *UserName, SQLSMALLINT NameLength2,SQLCHAR *Authentication, SQLSMALLINT NameLength3);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLCopyDesc(SQLHDESC SourceDescHandle,SQLHDESC TargetDescHandle);
#endif
SQLRETURN SQL_API SQLDataSources(SQLHENV EnvironmentHandle,SQLUSMALLINT Direction, SQLCHAR *ServerName,SQLSMALLINT BufferLength1, SQLSMALLINT *NameLength1,SQLCHAR *Description, SQLSMALLINT BufferLength2,SQLSMALLINT *NameLength2);
SQLRETURN SQL_API SQLDescribeCol(SQLHSTMT StatementHandle,SQLUSMALLINT ColumnNumber, SQLCHAR *ColumnName,SQLSMALLINT BufferLength, SQLSMALLINT *NameLength,SQLSMALLINT *DataType, SQLUINTEGER *ColumnSize,SQLSMALLINT *DecimalDigits, SQLSMALLINT *Nullable);
SQLRETURN SQL_API SQLDisconnect(SQLHDBC ConnectionHandle);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLEndTran(SQLSMALLINT HandleType, SQLHANDLE Handle,SQLSMALLINT CompletionType);
#endif
SQLRETURN SQL_API SQLError(SQLHENV EnvironmentHandle,SQLHDBC ConnectionHandle, SQLHSTMT StatementHandle,SQLCHAR *Sqlstate, SQLINTEGER *NativeError,SQLCHAR *MessageText, SQLSMALLINT BufferLength,SQLSMALLINT *TextLength);
SQLRETURN SQL_API SQLExecDirect(SQLHSTMT StatementHandle,SQLCHAR *StatementText, SQLINTEGER TextLength);
SQLRETURN SQL_API SQLExecute(SQLHSTMT StatementHandle);
SQLRETURN SQL_API SQLFetch(SQLHSTMT StatementHandle);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLFetchScroll(SQLHSTMT StatementHandle,SQLSMALLINT FetchOrientation, SQLINTEGER FetchOffset);
#endif
SQLRETURN SQL_API SQLFreeConnect(SQLHDBC ConnectionHandle);
SQLRETURN SQL_API SQLFreeEnv(SQLHENV EnvironmentHandle);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLFreeHandle(SQLSMALLINT HandleType, SQLHANDLE Handle);
#endif
SQLRETURN SQL_API SQLFreeStmt(SQLHSTMT StatementHandle,SQLUSMALLINT Option);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLGetConnectAttr(SQLHDBC ConnectionHandle,SQLINTEGER Attribute, SQLPOINTER Value,SQLINTEGER BufferLength, SQLINTEGER *StringLength);
#endif
SQLRETURN SQL_API SQLGetConnectOption(SQLHDBC ConnectionHandle,SQLUSMALLINT Option, SQLPOINTER Value);
SQLRETURN SQL_API SQLGetCursorName(SQLHSTMT StatementHandle,SQLCHAR *CursorName, SQLSMALLINT BufferLength,SQLSMALLINT *NameLength);
SQLRETURN SQL_API SQLGetData(SQLHSTMT StatementHandle,SQLUSMALLINT ColumnNumber, SQLSMALLINT TargetType,SQLPOINTER TargetValue, SQLINTEGER BufferLength,SQLINTEGER *StrLen_or_Ind);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLGetDescField(SQLHDESC DescriptorHandle,SQLSMALLINT RecNumber, SQLSMALLINT FieldIdentifier,SQLPOINTER Value, SQLINTEGER BufferLength,SQLINTEGER *StringLength);
SQLRETURN SQL_API SQLGetDescRec(SQLHDESC DescriptorHandle,SQLSMALLINT RecNumber, SQLCHAR *Name,SQLSMALLINT BufferLength, SQLSMALLINT *StringLength, SQLSMALLINT *Type, SQLSMALLINT *SubType, SQLINTEGER *Length, SQLSMALLINT *Precision, SQLSMALLINT *Scale, SQLSMALLINT *Nullable);
SQLRETURN SQL_API SQLGetDiagField(SQLSMALLINT HandleType, SQLHANDLE Handle,SQLSMALLINT RecNumber, SQLSMALLINT DiagIdentifier,SQLPOINTER DiagInfo, SQLSMALLINT BufferLength, SQLSMALLINT *StringLength);
SQLRETURN SQL_API SQLGetDiagRec(SQLSMALLINT HandleType, SQLHANDLE Handle,SQLSMALLINT RecNumber, SQLCHAR *Sqlstate,SQLINTEGER *NativeError, SQLCHAR *MessageText,SQLSMALLINT BufferLength, SQLSMALLINT *TextLength);
SQLRETURN SQL_API SQLGetEnvAttr(SQLHENV EnvironmentHandle,SQLINTEGER Attribute, SQLPOINTER Value,SQLINTEGER BufferLength, SQLINTEGER *StringLength);
#endif /* ODBCVER >= 0x0300 */
SQLRETURN SQL_API SQLGetFunctions(SQLHDBC ConnectionHandle,SQLUSMALLINT FunctionId, SQLUSMALLINT *Supported);
SQLRETURN SQL_API SQLGetInfo(SQLHDBC ConnectionHandle,SQLUSMALLINT InfoType, SQLPOINTER InfoValue,SQLSMALLINT BufferLength, SQLSMALLINT *StringLength);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLGetStmtAttr(SQLHSTMT StatementHandle,SQLINTEGER Attribute, SQLPOINTER Value,SQLINTEGER BufferLength, SQLINTEGER *StringLength);
#endif /* ODBCVER >= 0x0300 */
SQLRETURN SQL_API SQLGetStmtOption(SQLHSTMT StatementHandle,SQLUSMALLINT Option, SQLPOINTER Value);
SQLRETURN SQL_API SQLGetTypeInfo(SQLHSTMT StatementHandle,SQLSMALLINT DataType);
SQLRETURN SQL_API SQLNumResultCols(SQLHSTMT StatementHandle,SQLSMALLINT *ColumnCount);
SQLRETURN SQL_API SQLParamData(SQLHSTMT StatementHandle,SQLPOINTER *Value);
SQLRETURN SQL_API SQLPrepare(SQLHSTMT StatementHandle,SQLCHAR *StatementText, SQLINTEGER TextLength);
SQLRETURN SQL_API SQLPutData(SQLHSTMT StatementHandle,SQLPOINTER Data, SQLINTEGER StrLen_or_Ind);
SQLRETURN SQL_API SQLRowCount(SQLHSTMT StatementHandle, SQLINTEGER *RowCount);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLSetConnectAttr(SQLHDBC ConnectionHandle,SQLINTEGER Attribute, SQLPOINTER Value,SQLINTEGER StringLength);
#endif /* ODBCVER >= 0x0300 */
SQLRETURN SQL_API SQLSetConnectOption(SQLHDBC ConnectionHandle,SQLUSMALLINT Option, SQLUINTEGER Value);
SQLRETURN SQL_API SQLSetCursorName(SQLHSTMT StatementHandle,SQLCHAR *CursorName, SQLSMALLINT NameLength);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLSetDescField(SQLHDESC DescriptorHandle,SQLSMALLINT RecNumber, SQLSMALLINT FieldIdentifier,SQLPOINTER Value, SQLINTEGER BufferLength);
SQLRETURN SQL_API SQLSetDescRec(SQLHDESC DescriptorHandle,SQLSMALLINT RecNumber, SQLSMALLINT Type,SQLSMALLINT SubType, SQLINTEGER Length,SQLSMALLINT Precision, SQLSMALLINT Scale,SQLPOINTER Data, SQLINTEGER *StringLength,SQLINTEGER *Indicator);
SQLRETURN SQL_API SQLSetEnvAttr(SQLHENV EnvironmentHandle,SQLINTEGER Attribute, SQLPOINTER Value,SQLINTEGER StringLength);
#endif /* ODBCVER >= 0x0300 */
SQLRETURN SQL_API SQLSetParam(SQLHSTMT StatementHandle,SQLUSMALLINT ParameterNumber, SQLSMALLINT ValueType,SQLSMALLINT ParameterType, SQLUINTEGER LengthPrecision,SQLSMALLINT ParameterScale, SQLPOINTER ParameterValue,SQLINTEGER *StrLen_or_Ind);
#if (ODBCVER >= 0x0300)
SQLRETURN SQL_API SQLSetStmtAttr(SQLHSTMT StatementHandle,SQLINTEGER Attribute, SQLPOINTER Value,SQLINTEGER StringLength);
#endif
SQLRETURN SQL_API SQLSetStmtOption(SQLHSTMT StatementHandle,SQLUSMALLINT Option, SQLUINTEGER Value);
SQLRETURN SQL_API SQLSpecialColumns(SQLHSTMT StatementHandle,SQLUSMALLINT IdentifierType, SQLCHAR *CatalogName,SQLSMALLINT NameLength1, SQLCHAR *SchemaName,SQLSMALLINT NameLength2, SQLCHAR *TableName,SQLSMALLINT NameLength3, SQLUSMALLINT Scope,SQLUSMALLINT Nullable);
SQLRETURN SQL_API SQLStatistics(SQLHSTMT StatementHandle,SQLCHAR *CatalogName, SQLSMALLINT NameLength1,SQLCHAR *SchemaName, SQLSMALLINT NameLength2,SQLCHAR *TableName, SQLSMALLINT NameLength3,SQLUSMALLINT Unique, SQLUSMALLINT Reserved);
SQLRETURN SQL_API SQLTables(SQLHSTMT StatementHandle,SQLCHAR *CatalogName, SQLSMALLINT NameLength1,SQLCHAR *SchemaName, SQLSMALLINT NameLength2,SQLCHAR *TableName, SQLSMALLINT NameLength3,SQLCHAR *TableType, SQLSMALLINT NameLength4);
SQLRETURN SQL_API SQLTransact(SQLHENV EnvironmentHandle,SQLHDBC ConnectionHandle, SQLUSMALLINT CompletionType);
#endif /* RC_INVOKED */
#ifdef __cplusplus
} /* End of extern "C" { */
#endif /* __cplusplus */
#endif /* #ifndef __SQL */


未完待续