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mariadb/ndb/tools/ndbsql.cpp
pekka@mysql.com 39a4aa39f2 ndb_init() to all ndb programs
2004-09-15 11:49:18 +02:00

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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*******************************************************************************
* NDB Cluster NDB SQL -- A simple SQL Command-line Interface
*
******************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef NDB_MACOSX
#include <stdlib.h>
#else
#include <malloc.h>
#endif
#include <errno.h>
#include <editline/editline.h>
#include <NdbOut.hpp>
#include <ctype.h>
#include <wctype.h>
#ifndef SQL_BLOB
#define SQL_BLOB 30
#endif
#ifndef SQL_CLOB
#define SQL_CLOB 40
#endif
/**************************************************************************
* ------------------------------------------------------------------------
* MODULE: Readline and string handling
* ------------------------------------------------------------------------
**************************************************************************/
#define MAXBUF 2048
static char* s_readBuf;
static int s_bufSize = MAXBUF;
static char*
readSQL_File(FILE* inputFile)
{
int c;
int i = 0;
if (feof(inputFile))
return 0;
while ((c = getc(inputFile)) != EOF) {
if (i == s_bufSize-1) {
s_bufSize *= 2;
s_readBuf = (char*)realloc(s_readBuf, s_bufSize);
}
s_readBuf[i] = c;
if (c == '\n')
break;
i++;
}
s_readBuf[i] = 0;
return s_readBuf;
}
static char*
readline_gets(const char* prompt, bool batchMode, FILE* inputFile)
{
static char *line_read = (char *)NULL;
// Disable the default file-name completion action of TAB
// rl_bind_key ('\t', rl_insert);
if (batchMode)
/* Read one line from a file. */
line_read = readSQL_File(inputFile);
else
/* Get a line from the user. */
line_read = readline(prompt);
/* If the line has any text in it, save it in the history. */
if (!batchMode)
if (line_read && *line_read) add_history(line_read);
return (line_read);
}
#ifdef NDB_WIN32
extern "C"
{
char* readline(const char* prompt)
{
fputs(prompt, stdout);
return fgets(s_readBuf, MAXBUF, stdin);
}
void add_history(char*)
{
}
}
#endif
bool emptyString(const char* s) {
if (s == NULL) {
return true;
}
for (unsigned int i = 0; i < strlen(s); ++i) {
if (! isspace(s[i])) {
return false;
}
}
return true;
}
/**************************************************************************
* ------------------------------------------------------------------------
* MODULE: ODBC Handling
* ------------------------------------------------------------------------
**************************************************************************/
#include <sqlext.h>
#include <stdio.h>
#include <string.h>
#ifdef NDB_MACOSX
#include <stdlib.h>
#else
#include <malloc.h>
#endif
/**
* In the case where the user types a SELECT statement,
* the function fetches and displays all rows of the result set.
*
* This example illustrates the use of GetDiagField to identify the
* type of SQL statement executed and, for SQL statements where the
* row count is defined on all implementations, the use of GetDiagField
* to obtain the row count.
*/
#define MAXCOLS 100
#undef max
#define max(a,b) ((a)>(b)?(a):(b))
#define MAX_MESSAGE 500
void getDiag(SQLSMALLINT type, SQLHANDLE handle, unsigned k, unsigned count)
{
char message[MAX_MESSAGE];
char state[6];
SQLINTEGER native;
SQLSMALLINT length = -1;
memset(message, 0, MAX_MESSAGE);
int ret = SQLGetDiagRec(type, handle, k, (SQLCHAR*)state,
&native, (SQLCHAR*)message, MAX_MESSAGE, &length);
if (ret == SQL_NO_DATA) {
ndbout << "No error diagnostics available" << endl;
return;
}
ndbout << message << endl;
if (k <= count && ret != SQL_SUCCESS)
ndbout_c("SQLGetDiagRec %d of %d: return %d != SQL_SUCCESS",
k, count, (int)ret);
if (k <= count && (SQLSMALLINT) strlen(message) != length)
ndbout_c("SQLGetDiagRec %d of %d: message length %d != %d",
k, count, strlen(message), length);
if (k > count && ret != SQL_NO_DATA)
ndbout_c("SQLGetDiagRec %d of %d: return %d != SQL_NO_DATA",
k, count, (int)ret);
}
int print_err(SQLSMALLINT handletype, SQLHDBC hdbc) {
getDiag(handletype, hdbc, 1, 1);
return -1;
}
/***************************************************************
* The following functions are given for completeness, but are
* not relevant for understanding the database processing
* nature of CLI
***************************************************************/
#define MAX_NUM_PRECISION 15
/*#define max length of char string representation of no. as:
= max(precision) + leading sign +E +expsign + max exp length
= 15 +1 +1 +1 +2
= 15 +5
*/
#define MAX_NUM_STRING_SIZE (MAX_NUM_PRECISION + 5)
int build_indicator_message(SQLCHAR *errmsg, SQLPOINTER *data,
SQLINTEGER collen, SQLINTEGER *outlen,
SQLSMALLINT colnum) {
if (*outlen == SQL_NULL_DATA) {
(void)strcpy((char *)data, "NULL");
*outlen=4;
} else {
sprintf((char *)errmsg+strlen((char *)errmsg),
"%ld chars truncated, col %d\n", *outlen-collen+1,
colnum);
*outlen=255;
}
return 0;
}
SQLINTEGER display_length(SQLSMALLINT coltype, SQLINTEGER collen,
SQLCHAR *colname) {
switch (coltype) {
case SQL_VARCHAR:
case SQL_CHAR:
case SQL_VARBINARY:
case SQL_BINARY:
case SQL_BLOB:
case SQL_CLOB:
case SQL_BIT:
//case SQL_REF:
//case SQL_BIT_VARYING:
return(max(collen,(SQLINTEGER) strlen((char *)colname))+1);
case SQL_FLOAT:
case SQL_DOUBLE:
case SQL_NUMERIC:
case SQL_REAL:
case SQL_DECIMAL:
return(max(MAX_NUM_STRING_SIZE,strlen((char *)colname))+1);
case SQL_TYPE_DATE:
case SQL_TYPE_TIME:
//case SQL_TYPE_TIME_WITH_TIMEZONE:
case SQL_TYPE_TIMESTAMP:
//case SQL_TYPE_TIMESTAMP_WITH_TIMEZONE:
case SQL_INTERVAL_YEAR:
case SQL_INTERVAL_MONTH:
case SQL_INTERVAL_DAY:
case SQL_INTERVAL_HOUR:
case SQL_INTERVAL_MINUTE:
case SQL_INTERVAL_SECOND:
case SQL_INTERVAL_YEAR_TO_MONTH:
case SQL_INTERVAL_DAY_TO_HOUR:
case SQL_INTERVAL_DAY_TO_MINUTE:
case SQL_INTERVAL_DAY_TO_SECOND:
case SQL_INTERVAL_HOUR_TO_MINUTE:
case SQL_INTERVAL_HOUR_TO_SECOND:
case SQL_INTERVAL_MINUTE_TO_SECOND:
return(max(collen,(SQLINTEGER) strlen((char *)colname))+1);
case SQL_INTEGER:
//case SQL_BLOB_LOCATOR:
//case SQL_CLOB_LOCATOR:
//case SQL_UDT_LOCATOR:
//case SQL_ARRAY_LOCATOR:
return(max(11,strlen((char *)colname))+1);
case SQL_BIGINT:
return(max(21,strlen((char *)colname))+1);
case SQL_SMALLINT:
return(max(5,strlen((char *)colname))+1);
default:
(void)printf("Unknown datatype, %d\n", coltype);
return(0);
}
}
struct Con {
const char* dsn;
SQLHENV henv;
SQLHDBC hdbc;
Con(const char* _dsn) :
dsn(_dsn), henv(SQL_NULL_HANDLE), hdbc(SQL_NULL_HANDLE) {}
};
static int
do_connect(Con& con)
{
int ret;
// allocate an environment handle
ret = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &con.henv);
if (ret != SQL_SUCCESS)
return -1;
// set odbc version (required)
ret = SQLSetEnvAttr(con.henv, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, 0);
if (ret != SQL_SUCCESS)
return -1;
// allocate a connection handle
ret = SQLAllocHandle(SQL_HANDLE_DBC, con.henv, &con.hdbc);
if (ret != SQL_SUCCESS)
return -1;
// connect to database
SQLCHAR szConnStrOut[256];
SQLSMALLINT cbConnStrOut;
ret = SQLDriverConnect(con.hdbc, 0, (SQLCHAR*)con.dsn, SQL_NTS,
szConnStrOut, sizeof(szConnStrOut), &cbConnStrOut, SQL_DRIVER_COMPLETE);
if (ret != SQL_SUCCESS) {
ndbout << "Connection failure: Could not connect to database" << endl;
print_err(SQL_HANDLE_DBC, con.hdbc);
return -1;
}
return 0;
}
static int
do_disconnect(Con& con)
{
// disconnect from database
SQLDisconnect(con.hdbc);
// free connection handle
SQLFreeHandle(SQL_HANDLE_DBC, con.hdbc);
con.hdbc = SQL_NULL_HANDLE;
// free environment handle
SQLFreeHandle(SQL_HANDLE_ENV, con.henv);
con.henv = SQL_NULL_HANDLE;
return 0;
}
static int
get_autocommit(Con& con)
{
int ret;
SQLUINTEGER v;
ret = SQLGetConnectAttr(con.hdbc, SQL_ATTR_AUTOCOMMIT, (SQLPOINTER)&v, SQL_IS_UINTEGER, 0);
if (ret != SQL_SUCCESS) {
ndbout << "Get autocommit failed" << endl;
print_err(SQL_HANDLE_DBC, con.hdbc);
return -1;
}
return v;
}
static int
set_autocommit(Con& con, SQLUINTEGER v)
{
int ret;
ret = SQLSetConnectAttr(con.hdbc, SQL_ATTR_AUTOCOMMIT, (SQLPOINTER)v, SQL_IS_UINTEGER);
if (ret != SQL_SUCCESS) {
ndbout << "Set autocommit failed" << endl;
print_err(SQL_HANDLE_DBC, con.hdbc);
return -1;
}
return 0;
}
static int
do_commit(Con& con)
{
int ret = SQLEndTran(SQL_HANDLE_DBC, con.hdbc, SQL_COMMIT);
if (ret != SQL_SUCCESS) {
ndbout << "Commit failed" << endl;
print_err(SQL_HANDLE_DBC, con.hdbc);
return -1;
}
return 0;
}
static int
do_rollback(Con& con)
{
int ret = SQLEndTran(SQL_HANDLE_DBC, con.hdbc, SQL_ROLLBACK);
if (ret != SQL_SUCCESS) {
ndbout << "Rollback failed" << endl;
print_err(SQL_HANDLE_DBC, con.hdbc);
return -1;
}
return 0;
}
static int
do_stmt(Con& con, const char *sqlstr)
{
SQLHSTMT hstmt;
SQLCHAR errmsg[256];
SQLCHAR colname[32];
SQLSMALLINT coltype;
SQLSMALLINT colnamelen;
SQLSMALLINT nullable;
SQLUINTEGER collen[MAXCOLS];
SQLSMALLINT scale;
SQLINTEGER outlen[MAXCOLS];
SQLCHAR *data[MAXCOLS];
SQLSMALLINT nresultcols = 0;
SQLINTEGER rowcount;
SQLINTEGER stmttype;
SQLRETURN rc;
/* allocate a statement handle */
SQLAllocHandle(SQL_HANDLE_STMT, con.hdbc, &hstmt);
/* execute the SQL statement */
rc = SQLExecDirect(hstmt, (SQLCHAR*)sqlstr, SQL_NTS);
if (rc == SQL_ERROR) {
ndbout << "Operation failed" << endl;
print_err(SQL_HANDLE_STMT, hstmt);
return -1;
}
if (rc != SQL_SUCCESS && rc != SQL_SUCCESS_WITH_INFO && rc != SQL_NO_DATA_FOUND) {
ndbout << "Operation returned unknown code " << rc << endl;
return -1;
}
/* see what kind of statement it was */
SQLGetDiagField(SQL_HANDLE_STMT, hstmt, 0,
SQL_DIAG_DYNAMIC_FUNCTION_CODE,
(SQLPOINTER)&stmttype, SQL_IS_INTEGER, (SQLSMALLINT *)NULL);
switch (stmttype) {
/* SELECT statement */
case SQL_DIAG_SELECT_CURSOR:
/* determine number of result columns */
SQLNumResultCols(hstmt, &nresultcols);
/***********************
* Display column names
***********************/
/* Print vertical divider */
printf("|");
for (int i=0; i<nresultcols; i++) {
SQLDescribeCol(hstmt, i+1, colname, sizeof(colname),
&colnamelen, &coltype, &collen[i], &scale, &nullable);
collen[i] = display_length(coltype, collen[i], colname);
for (SQLUINTEGER j=0; j<collen[i]; j++) printf("-");
printf("--+");
}
printf("\n");
printf("|");
for (int i=0; i<nresultcols; i++) {
SQLDescribeCol(hstmt, i+1, colname, sizeof(colname),
&colnamelen, &coltype, &collen[i], &scale, &nullable);
/* assume there is a display_length function which
computes correct length given the data type */
collen[i] = display_length(coltype, collen[i], colname);
(void)printf(" %*.*s |", (int)collen[i], (int)collen[i], (char *)colname);
/* allocate memory to bind column */
data[i] = (SQLCHAR *) malloc(collen[i]);
if (data[i] == NULL) {
ndbout << "Failed to allocate malloc memory in NDB SQL program"
<< endl;
exit(-1);
}
/* bind columns to program vars, converting all types to CHAR */
SQLBindCol(hstmt, i+1, SQL_C_CHAR, data[i], collen[i], &outlen[i]);
}
printf("\n");
/* Print vertical divider */
printf("|");
for (int i=0; i<nresultcols; i++) {
SQLDescribeCol(hstmt, i+1, colname, sizeof(colname),
&colnamelen, &coltype, &collen[i], &scale, &nullable);
collen[i] = display_length(coltype, collen[i], colname);
for (SQLUINTEGER j=0; j<collen[i]; j++) printf("-");
printf("--+");
}
printf("\n");
/**********************
* Display result rows
**********************/
{
int no_of_rows_fetched=0;
while (1) {
rc=SQLFetch(hstmt);
errmsg[0] = '\0';
if (rc == SQL_ERROR) {
print_err(SQL_HANDLE_STMT, hstmt);
break;
}
if (rc == SQL_NO_DATA) break;
if (rc == SQL_SUCCESS) {
printf("|");
for (int i=0; i<nresultcols; i++) {
if (outlen[i] == SQL_NULL_DATA
|| outlen[i] >= (SQLINTEGER) collen[i])
build_indicator_message(errmsg,
(SQLPOINTER *)data[i], collen[i],
&outlen[i], i);
(void)printf(" %*.*s |", (int)collen[i], (int)collen[i],
(char *)data[i]);
}
/* print any truncation messages */
(void)printf("\n%s", (char *)errmsg);
} else if (rc == SQL_SUCCESS_WITH_INFO) {
printf("|");
for (int i=0; i<nresultcols; i++) {
if (outlen[i] == SQL_NULL_DATA
|| outlen[i] >= (SQLINTEGER) collen[i])
build_indicator_message(errmsg,
(SQLPOINTER *)data[i], collen[i],
&outlen[i], i);
(void)printf(" %*.*s |", (int)collen[i], (int)collen[i],
(char *)data[i]);
} /* for all columns in this row */
/* print any truncation messages */
(void)printf("\n%s", (char *)errmsg);
}
no_of_rows_fetched++;
} /* while rows to fetch */
/* Print vertical divider */
printf("|");
for (int i=0; i<nresultcols; i++) {
SQLDescribeCol(hstmt, i+1, colname, sizeof(colname),
&colnamelen, &coltype, &collen[i], &scale, &nullable);
collen[i] = display_length(coltype, collen[i], colname);
for (SQLUINTEGER j=0; j<collen[i]; j++) printf("-");
printf("--+");
}
printf("\n");
ndbout << no_of_rows_fetched << " rows fetched" << endl;
}
SQLCloseCursor(hstmt);
break;
/* searched DELETE, INSERT or searched UPDATE statement */
case SQL_DIAG_DELETE_WHERE:
case SQL_DIAG_INSERT:
case SQL_DIAG_UPDATE_WHERE:
/* check rowcount */
SQLRowCount(hstmt, (SQLINTEGER*)&rowcount);
ndbout << (int)rowcount << " rows affected" << endl;
break;
/* other statements */
case SQL_DIAG_ALTER_TABLE:
case SQL_DIAG_CREATE_TABLE:
case SQL_DIAG_CREATE_VIEW:
case SQL_DIAG_DROP_TABLE:
case SQL_DIAG_DROP_VIEW:
case SQL_DIAG_CREATE_INDEX:
case SQL_DIAG_DROP_INDEX:
case SQL_DIAG_DYNAMIC_DELETE_CURSOR:
case SQL_DIAG_DYNAMIC_UPDATE_CURSOR:
case SQL_DIAG_GRANT:
case SQL_DIAG_REVOKE:
ndbout << "Operation successful" << endl;
break;
/* implementation-defined statement */
default:
(void)printf("Unknown Statement type=%ld\n", stmttype);
break;
}
/* free data buffers */
for (int i=0; i<nresultcols; i++) {
(void)free(data[i]);
}
SQLFreeHandle(SQL_HANDLE_STMT, hstmt); // free statement handle
return(0);
}
/**************************************************************************
* ------------------------------------------------------------------------
* MODULE: Help
* ------------------------------------------------------------------------
**************************************************************************/
void print_help() {
ndbout << "Commands:" << endl
<< "set Print currect settings" << endl
<< "set trace N Set NDB ODBC trace level to N (0-5)" << endl
<< "set autocommit on Commit each statement (default)" << endl
<< "set autocommit off Use explicit commit/rollback - may time out!" << endl
<< "commit Commit changes to database" << endl
<< "rollback Rollback (undo) any changes" << endl
<< "whenever sqlerror Define action: exit or continue (default)" << endl
<< endl
<< "help Print this help" << endl
<< "help create Print create table examples" << endl
<< "help insert Print insert examples" << endl
<< "help select Print select examples" << endl
<< "help delete Print delete examples" << endl
<< "help update Print update examples" << endl
<< "help virtual Print help on NDB ODBC virtual tables" << endl
<< "list tables Lists all table names" << endl
<< endl
<< "All other commands are sent to the NDB ODBC SQL executor"
<< endl << endl;
}
void print_help_create() {
ndbout << "Create Table Examples" << endl << endl
<< "create table t ( a integer not null, b char(20) not null," << endl
<< " c float, primary key(a, b) )" << endl
<< "create table t ( ndb$tid bigint unsigned primary key," << endl
<< " b char(20) not null, c float )" << endl
<< "create table t ( a int auto_increment primary key," << endl
<< " b char(20) not null, c float )" << endl
<< "create table t ( a int primary key," << endl
<< " b int default 100 )" << endl
<< endl
<< "For more information read NDB Cluster ODBC Manual."
<< endl;
}
void print_help_insert() {
ndbout << "Insert Examples" << endl << endl
<< "insert into t(a, c) values (123, 'abc')" << endl
<< "insert into t1(a, c) select a + 10 * b, c from t2" << endl
<< "insert into t values(null, 'abc', 1.23)" << endl
<< "insert into t(b, c) values('abc', 1.23)" << endl
<< endl
<< "For more information read NDB Cluster ODBC Manual."
<< endl;
}
void print_help_select() {
ndbout << "Select Examples" << endl << endl
<< "select a + b * c from t where a <= b + c and (b > c or c > 10)"
<< endl
<< "select a.x, b.y, c.z from t1 a, t2 b, t2 c where a.x + b.y < c.z"
<< endl
<< "select * from t1, t2 where a1 > 5 order by b1 + b2, c1 desc"
<< endl
<< "select count(*), max(a), 1 + sum(b) + avg(c * d) from t" << endl
<< "select * from t where a < 10 or b > 10" << endl
<< "select * from t where pk = 5 and b > 10" << endl
<< "select * from t1, t2, t3 where t1.pk = t2.x and t2.pk = t3.y"
<< endl << endl
<< "For more information read NDB Cluster ODBC Manual."
<< endl;
}
void print_help_update() {
ndbout << "Update and Delete Examples" << endl << endl
<< "update t set a = b + 5, c = d where c > 10" << endl
<< "update t set a = b + 5, c = d where pk = 5 and c > 10" << endl
<< "update t set a = 5, c = 7 where pk = 5" << endl
<< "delete from t where c > 10" << endl
<< "delete from t where pk = 5 and c > 10" << endl
<< "delete from t where pk = 5" << endl
<< endl
<< "For more information read NDB Cluster ODBC Manual."
<< endl;
}
void print_help_virtual() {
ndbout << "Virtual tables" << endl << endl
<< "* DUAL"
<< " a 1-row table - example: select SYSDATE from DUAL" << endl
<< "* ODBC$TYPEINFO" << endl
<< " corresponds to SQLGetTypeInfo" << endl
<< "* ODBC$TABLES" << endl
<< " corresponds to SQLTables (ordered by NDB table id)" << endl
<< "* ODBC$COLUMNS" << endl
<< " corresponds to SQLColumns (ordered by NDB table id)" << endl
<< "* ODBC$PRIMARYKEYS" << endl
<< " corresponds to SQLPrimaryKeys (ordered by NDB table id)" << endl
<< endl
<< "For more information read NDB Cluster ODBC Manual."
<< endl;
}
/**************************************************************************
* ------------------------------------------------------------------------
* MODULE: Main
* ------------------------------------------------------------------------
**************************************************************************/
int main(int argc, const char** argv)
{
ndb_init();
const char* usage = "Usage: ndbsql [-h] [-d dsn] [-f file] [stmt]\n-h help\n-d <database name or connect string>\n-f <file name> batch mode\nstmt single SQL statement\n";
const char* dsn = "TEST_DB";
bool helpFlg = false, batchMode = false;
const char* fileName = 0;
FILE* inputFile = stdin;
const char* singleStmt = 0;
s_readBuf = (char*)malloc(s_bufSize);
while (++argv, --argc > 0) {
const char* arg = argv[0];
if (arg[0] != '-')
break;
if (strcmp(arg, "-d") == 0) {
if (++argv, --argc > 0) {
dsn = argv[0];
continue;
}
}
if (strcmp(arg, "-h") == 0) {
helpFlg = true;
continue;
}
if (strcmp(arg, "-f") == 0) {
if (++argv, --argc > 0) {
fileName = argv[0];
continue;
}
}
ndbout << usage;
return 1;
}
if (helpFlg) {
ndbout << usage << "\n";
print_help();
return 0;
}
if (fileName != 0) {
if (argc > 0) {
ndbout << usage;
return 1;
}
if ((inputFile = fopen(fileName, "r")) == 0) {
ndbout << "Could not read file " << fileName << ": " << strerror(errno) << endl;
return 1;
}
batchMode = true;
}
if (argc > 0) {
singleStmt = argv[0];
batchMode = true;
}
if (! batchMode)
ndbout << "NDB Cluster NDB SQL -- A simple SQL Command-line Interface\n\n";
Con con(dsn);
if (do_connect(con) < 0)
return 1;
if (! batchMode)
ndbout << "Terminate SQL statements with a semi-colon ';'\n";
char* line = 0;
char* line2 = 0;
char* line3 = 0;
unsigned lineno = 0;
bool has_semi;
bool exit_on_error = false;
int exit_code = 0;
while (1) {
free(line);
line = 0;
lineno = 0;
more_lines:
free(line2);
free(line3);
line2 = line3 = 0;
lineno++;
has_semi = false;
char prompt[20];
if (lineno == 1)
strcpy(prompt, "SQL> ");
else
sprintf(prompt, "%4d ", lineno);
if (singleStmt != 0) {
line = strdup(singleStmt);
int n = strlen(line);
while (n > 0 && isspace(line[n - 1])) {
line[--n] = 0;
}
if (n > 0 && line[n - 1] == ';')
line[n - 1] = 0;
has_semi = true; // regardless
} else {
const char *line1 = readline_gets(prompt, batchMode, inputFile);
if (line1 != 0) {
if (line == 0)
line = strdup(line1);
else {
line = (char*)realloc(line, strlen(line) + 1 + strlen(line1) + 1);
strcat(line, "\n");
strcat(line, line1);
}
if (batchMode)
ndbout << prompt << line1 << endl;
} else {
if (! batchMode)
ndbout << endl;
if (line != 0)
ndbout << "Ignored unterminated SQL statement" << endl;
break;
}
}
line2 = (char*)malloc(strlen(line) + 1);
{
char* p = line2;
char* q = line;
bool str = false;
while (*q != 0) {
if (*q == '\'') {
str = !str;
*p++ = *q++;
} else if (!str && *q == '-' && *(q + 1) == '-') {
while (*q != 0 && *q != '\n')
q++;
} else
*p++ = *q++;
}
*p = 0;
int n = strlen(line2);
while (n > 0 && isspace(line2[n - 1]))
line2[--n] = 0;
if (n > 0 && line2[n - 1] == ';') {
line2[--n] = 0;
has_semi = true;
}
}
line3 = strdup(line2);
char* tok[10];
int ntok = 0;
tok[ntok] = strtok(line3, " ");
while (tok[ntok] != 0) {
ntok++;
if (ntok == 10)
break;
tok[ntok] = strtok(0, " ");
}
if (ntok == 0)
continue;
if (!strcasecmp(tok[0], "help") || !strcmp(tok[0], "?")) {
if (ntok != 2)
print_help();
else if (!strcasecmp(tok[1], "create"))
print_help_create();
else if (!strcasecmp(tok[1], "insert"))
print_help_insert();
else if (strcasecmp(tok[1], "select"))
print_help_select();
else if (!strcasecmp(tok[1], "delete"))
print_help_update();
else if (!strcasecmp(tok[1], "update"))
print_help_update();
else if (!strcasecmp(tok[1], "virtual"))
print_help_virtual();
else
print_help();
continue;
}
if (!strcasecmp(tok[0], "list")) {
if (ntok == 2 && !strcasecmp(tok[1], "tables")) {
free(line2);
line2 = strdup("SELECT TABLE_NAME FROM ODBC$TABLES");
has_semi = true;
} else {
ndbout << "Invalid list option - try help" << endl;
continue;
}
}
if (ntok == 1 && !strcasecmp(tok[0], "quit"))
break;
if (ntok == 1 && !strcasecmp(tok[0], "exit"))
break;
if (ntok == 1 && !strcasecmp(tok[0], "bye"))
break;
if (!strcasecmp(tok[0], "set")) {
if (ntok == 1) {
char* p;
p = getenv("NDB_ODBC_TRACE");
ndbout << "Trace level is " << (p ? atoi(p) : 0) << endl;
int ret = get_autocommit(con);
if (ret != -1)
ndbout << "Autocommit is " << (ret == SQL_AUTOCOMMIT_ON ? "on" : "off") << endl;
} else if (ntok == 3 && !strcasecmp(tok[1], "trace")) {
static char env[40];
int n = tok[2] ? atoi(tok[2]) : 0;
sprintf(env, "NDB_ODBC_TRACE=%d", n);
putenv(env);
ndbout << "Trace level set to " << n << endl;
} else if (ntok == 3 && !strcasecmp(tok[1], "autocommit")) {
if (tok[2] && !strcasecmp(tok[2], "on")) {
int ret = set_autocommit(con, SQL_AUTOCOMMIT_ON);
if (ret != -1)
ndbout << "Autocommit set to ON" << endl;
} else if (tok[2] && !strcasecmp(tok[2], "off")) {
int ret = set_autocommit(con, SQL_AUTOCOMMIT_OFF);
if (ret != -1)
ndbout << "Autocommit set to OFF - transaction may time out" << endl;
} else {
ndbout << "Invalid autocommit option - try help" << endl;
}
} else {
ndbout << "Invalid set command - try help" << endl;
}
continue;
}
if (ntok >= 2 &&
!strcasecmp(tok[0], "whenever") && !strcasecmp(tok[1], "sqlerror")) {
if (ntok == 3 && !strcasecmp(tok[2], "exit"))
exit_on_error = true;
else if (ntok == 3 && !strcasecmp(tok[2], "continue"))
exit_on_error = false;
else {
ndbout << "Invalid whenever clause - try help" << endl;
}
continue;
}
if (!strcasecmp(tok[0], "commit")) {
if (ntok == 1) {
if (do_commit(con) != -1)
ndbout << "Commit done" << endl;
else {
exit_code = 1;
if (exit_on_error) {
ndbout << "Exit on error" << endl;
break;
}
}
} else {
ndbout << "Invalid commit command - try help" << endl;
}
continue;
}
if (!strcasecmp(tok[0], "rollback")) {
if (ntok == 1) {
if (do_rollback(con) != -1)
ndbout << "Rollback done" << endl;
else {
exit_code = 1;
if (exit_on_error) {
ndbout << "Exit on error" << endl;
break;
}
}
} else {
ndbout << "Invalid commit command - try help" << endl;
}
continue;
}
if (! has_semi)
goto more_lines;
if (do_stmt(con, line2) != 0) {
exit_code = 1;
if (exit_on_error) {
ndbout << "Exit on error" << endl;
break;
}
}
if (singleStmt)
break;
}
do_disconnect(con);
return exit_code;
}
// vim: set sw=2 et:
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