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authorMarc G. Fournier <scrappy@hub.org>1998-02-19 13:52:17 +0000
committerMarc G. Fournier <scrappy@hub.org>1998-02-19 13:52:17 +0000
commit1d6424b1fb04b3ee6b59fc9333c9afc6e8b8e285 (patch)
tree0048fa55c85541ee30e7375b380ee7ae05513d40
parented875a4132c0d72269cdeda2538c155ea23ace6d (diff)
downloadpostgresql-1d6424b1fb04b3ee6b59fc9333c9afc6e8b8e285.tar.gz
postgresql-1d6424b1fb04b3ee6b59fc9333c9afc6e8b8e285.zip
From: Michael Meskes <meskes@topsystem.de>
Here's my next patch. this one should fix some more bugs. ecpg now fully understands the whenever statement.
-rw-r--r--src/interfaces/ecpg/ChangeLog9
-rw-r--r--src/interfaces/ecpg/TODO6
-rw-r--r--src/interfaces/ecpg/include/ecpglib.h5
-rw-r--r--src/interfaces/ecpg/lib/ecpglib.c9
-rw-r--r--src/interfaces/ecpg/preproc/ecpg.c19
-rw-r--r--src/interfaces/ecpg/preproc/extern.h2
-rw-r--r--src/interfaces/ecpg/preproc/pgc.l47
-rw-r--r--src/interfaces/ecpg/preproc/preproc.y142
-rw-r--r--src/interfaces/ecpg/preproc/type.c14
-rw-r--r--src/interfaces/ecpg/preproc/type.h16
-rw-r--r--src/interfaces/ecpg/test/test2.pgc24
11 files changed, 242 insertions, 51 deletions
diff --git a/src/interfaces/ecpg/ChangeLog b/src/interfaces/ecpg/ChangeLog
index 017314777e4..ff721fa5013 100644
--- a/src/interfaces/ecpg/ChangeLog
+++ b/src/interfaces/ecpg/ChangeLog
@@ -29,3 +29,12 @@ Mon Feb 16 16:17:21 CET 1998
- enable initialisation in declare section.
- connect call accepts a variable as well.
+
+Wed Feb 18 21:41:30 CET 1998
+
+ - added whenever statement
+
+Thu Feb 19 12:48:14 CET 1998
+
+ - added do option to whenever statement
+
diff --git a/src/interfaces/ecpg/TODO b/src/interfaces/ecpg/TODO
index 832cd66dab9..3de01c497af 100644
--- a/src/interfaces/ecpg/TODO
+++ b/src/interfaces/ecpg/TODO
@@ -3,7 +3,7 @@ This list is still from Linus. MM
The variables should be static.
Preprocessor cannot do syntax checking on your SQL statements Whatever you
-write is copied more or less exactly to the postgres95 and you will not be
+write is copied more or less exactly to the PostgreSQL and you will not be
able to locate your errors until run-time.
No restriction to strings only The PQ interface, and most of all the PQexec
@@ -42,4 +42,6 @@ Now comes my list (MM):
What do we do with enum data types?
-'signed' isn't understood so far
+The cursor is opened when the declare statement is issued.
+
+The is no exec sql prepare statement.
diff --git a/src/interfaces/ecpg/include/ecpglib.h b/src/interfaces/ecpg/include/ecpglib.h
index 1fb35f8dfee..4634b695735 100644
--- a/src/interfaces/ecpg/include/ecpglib.h
+++ b/src/interfaces/ecpg/include/ecpglib.h
@@ -24,4 +24,9 @@ struct ECPGgeneric_varchar {
char arr[1];
};
+/* print an error message */
+void sqlprint(void);
+/* define this for simplicity as well as compatibility */
+
+#define SQLCODE sqlca.sqlcode
diff --git a/src/interfaces/ecpg/lib/ecpglib.c b/src/interfaces/ecpg/lib/ecpglib.c
index 9f5911c4774..19ec7f3b69a 100644
--- a/src/interfaces/ecpg/lib/ecpglib.c
+++ b/src/interfaces/ecpg/lib/ecpglib.c
@@ -232,7 +232,7 @@ ECPGdo(int lineno, char *query,...)
return false;
}
- /* Now then request is built. */
+ /* Now the request is built. */
if (committed)
{
@@ -646,3 +646,10 @@ ECPGlog(const char *format,...)
free(f);
}
}
+
+/* print out an error message */
+void sqlprint(void)
+{
+ sqlca.sqlerrm.sqlerrmc[sqlca.sqlerrm.sqlerrml] = '\0';
+ printf ("sql error %s\n", sqlca.sqlerrm.sqlerrmc);
+}
diff --git a/src/interfaces/ecpg/preproc/ecpg.c b/src/interfaces/ecpg/preproc/ecpg.c
index c5d7beeece3..58368eee847 100644
--- a/src/interfaces/ecpg/preproc/ecpg.c
+++ b/src/interfaces/ecpg/preproc/ecpg.c
@@ -54,8 +54,9 @@ main(int argc, char *const argv[])
for (fnr = optind; fnr < argc; fnr++)
{
char *filename, *ptr2ext;
+ int ext = 0;
- filename = mm_alloc(strlen(argv[fnr]) + 2);
+ filename = mm_alloc(strlen(argv[fnr]) + 4);
strcpy(filename, argv[fnr]);
@@ -63,6 +64,8 @@ main(int argc, char *const argv[])
/* no extension or extension not equal .pgc */
if (ptr2ext == NULL || strcmp(ptr2ext, ".pgc") != 0)
{
+ if (ptr2ext == NULL)
+ ext = 1; /* we need this information a while later */
ptr2ext = filename + strlen(filename);
ptr2ext[0] = '.';
}
@@ -82,7 +85,19 @@ main(int argc, char *const argv[])
}
}
- yyin = fopen(input_filename = argv[fnr], "r");
+ if (ext == 1)
+ {
+ /* no extension => add .pgc */
+ ptr2ext = strrchr(filename, '.');
+ ptr2ext[1] = 'p';
+ ptr2ext[2] = 'g';
+ ptr2ext[3] = 'c';
+ ptr2ext[4] = '\0';
+ input_filename = filename;
+ }
+ else
+ input_filename = argv[fnr];
+ yyin = fopen(input_filename, "r");
if (yyin == NULL)
perror(argv[fnr]);
else
diff --git a/src/interfaces/ecpg/preproc/extern.h b/src/interfaces/ecpg/preproc/extern.h
index 9a3f9e12b6e..8055e5b07c1 100644
--- a/src/interfaces/ecpg/preproc/extern.h
+++ b/src/interfaces/ecpg/preproc/extern.h
@@ -11,4 +11,4 @@ extern FILE *yyin, *yyout;
extern void lex_init(void);
extern char * input_filename;
extern int yyparse(void);
-extern void *mm_alloc(size_t);
+extern void *mm_alloc(size_t), *mm_realloc(void *, size_t);
diff --git a/src/interfaces/ecpg/preproc/pgc.l b/src/interfaces/ecpg/preproc/pgc.l
index 2f87d6ffd4b..f3def3d2e98 100644
--- a/src/interfaces/ecpg/preproc/pgc.l
+++ b/src/interfaces/ecpg/preproc/pgc.l
@@ -15,25 +15,35 @@ letter [A-Za-z_]
digit [0-9]
length {digit}+
symbol {letter}({letter}|{digit})*
+label ({letter}|{digit})*
string '[^']*'
-exec [eE][xX][eE][cC]
-execute [eE][xX][eE][cC][uU][tT][eE]
-sql [sS][qQ][lL]
-varchar [vV][aA][rR][cC][hH][aA][rR]
-varchar2 [vV][aA][rR][cC][hH][aA][rR]2
-into [iI][nN][tT][oO]
begin [bB][eE][gG][iI][nN]
-end [eE][nN][dD]
+break [bB][rR][eE][aA][kK]
+commit [cC][oO][mM][mM][iI][tT]
+connect [cC][oO][nN][nN][eE][cC][tT]
+continue [cC][oO][nN][tT][iI][nN][uU][eE]
declare [dD][eE][cC][lL][aA][rR][eE]
-section [sS][eE][cC][tT][iI][oO][nN]
+do [dD][oO]
+end [eE][nN][dD]
+exec [eE][xX][eE][cC]
+execute [eE][xX][eE][cC][uU][tT][eE]
+found [fF][oO][uU][nN][dD]
+goto [gG][oO][tT][oO]
+immediate [iI][mM][mM][eE][dD][iI][aA][tT][eE]
include [iI][nN][cC][lL][uU][dD][eE]
-connect [cC][oO][nN][nN][eE][cC][tT]
+into [iI][nN][tT][oO]
+not [nN][oO][tT]
open [oO][pP][eE][nN]
-commit [cC][oO][mM][mM][iI][tT]
-immediate [iI][mM][mM][eE][dD][iI][aA][tT][eE]
release [rR][eE][lL][eE][aA][sS][eE]
rollback [rR][oO][lL][lL][bB][aA][cC][kK]
+section [sS][eE][cC][tT][iI][oO][nN]
+sql [sS][qQ][lL]
+sqlerror [sS][qQ][lL][eE][rR][rR][oO][rR]
+sqlprint [sS][qQ][lL][pP][rR][iI][nN][tT]
+varchar [vV][aA][rR][cC][hH][aA][rR]
+varchar2 [vV][aA][rR][cC][hH][aA][rR]2
+whenever [wW][hH][eE][nN][eE][vV][eE][rR]
work [wW][oO][rR][kK]
%%
<C>{exec}{ws}{sql} { BEGIN SQL; dbg(SQL_START); return SQL_START; }
@@ -51,8 +61,15 @@ work [wW][oO][rR][kK]
<SQL>{release} { dbg(SQL_RELEASE); return SQL_RELEASE; }
<SQL>{work} { dbg(SQL_WORK); return SQL_WORK; }
<SQL>{rollback} { dbg(SQL_ROLLBACK); return SQL_ROLLBACK; }
-
+<SQL>{whenever} { dbg(SQL_WHENEVER); return SQL_WHENEVER; }
+<SQL>{sqlerror} { dbg(SQL_SQLERROR); return SQL_SQLERROR; }
+<SQL>{sqlprint} { dbg(SQL_SQLPRINT); return SQL_SQLPRINT; }
+<SQL>{not}{ws}{found} { dbg(SQL_NOT_FOUND); return SQL_NOT_FOUND; }
+<SQL>{break} { dbg(SQL_BREAK); return SQL_BREAK; }
+<SQL>{continue} { dbg(SQL_CONTINUE); return SQL_CONTINUE; }
<SQL>{into} { dbg(SQL_INTO); return SQL_INTO; }
+<SQL>{goto} { dbg(SQL_GOTO); return SQL_GOTO; }
+<SQL>{do} { dbg(SQL_DO); return SQL_DO; }
{length} { dbg(S_LENGTH); return S_LENGTH; }
@@ -67,6 +84,7 @@ double { dbg(S_DOUBLE); return S_DOUBLE; }
bool { dbg(S_BOOL); return S_BOOL; }
static { dbg(S_STATIC); return S_STATIC; }
+signed { dbg(S_SIGNED); return S_SIGNED; }
extern { dbg(S_EXTERN); return S_EXTERN; }
auto { dbg(S_AUTO); return S_AUTO; }
const { dbg(S_CONST); return S_CONST; }
@@ -77,6 +95,7 @@ struct { dbg(S_STRUCT); return S_STRUCT; }
{string} { dbg(SQL_STRING); return SQL_STRING; }
<SQL>{ws} ;
{symbol} { dbg(S_SYMBOL); return S_SYMBOL; }
+{label} { dbg(S_LABEL); return S_LABEL; }
<SQL>"!<" { dbg(S_SYMBOL); return S_SYMBOL; }
<SQL>"!>" { dbg(S_SYMBOL); return S_SYMBOL; }
@@ -114,8 +133,10 @@ struct { dbg(S_STRUCT); return S_STRUCT; }
";" { dbg(;); return ';'; }
"=" { dbg(=); return '='; }
"," { dbg(komma); return ','; }
+\( { dbg(braceopen); return '('; }
+\) { dbg(braceclose); return ')'; }
\{ { dbg(blockstart); return '{'; }
-\} { dbg(blockend); return'}'; }
+\} { dbg(blockend); return '}'; }
\* { dbg(*); return('*'); }
<SQL>":" { dbg(:); return ':'; }
diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index 670ea9b8c6a..52b814ac194 100644
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -14,6 +14,8 @@ static void yyerror(char *);
*/
int debugging = 0;
static int struct_level = 0;
+static char *do_str = NULL;
+static int do_length = 0;
/* temporarily store record members while creating the data structure */
struct ECPGrecord_member *record_member_list[128] = { NULL };
@@ -23,7 +25,7 @@ struct ECPGrecord_member *record_member_list[128] = { NULL };
*/
char * input_filename = NULL;
-void
+static void
output_line_number()
{
if (input_filename)
@@ -31,6 +33,47 @@ output_line_number()
}
/*
+ * store the whenever action here
+ */
+static struct when when_error, when_nf;
+
+static void
+print_action(struct when *w)
+{
+ switch (w->code)
+ {
+ case W_CONTINUE: fprintf(yyout, "continue;");
+ break;
+ case W_BREAK: fprintf(yyout, "break;");
+ break;
+ case W_SQLPRINT: fprintf(yyout, "sqlprint();");
+ break;
+ case W_GOTO: fprintf(yyout, "goto %s;", w->str);
+ break;
+ case W_DO: fprintf(yyout, "%s;", w->str);
+ break;
+ default: fprintf(yyout, "{/* not implemented yet */}");
+ break;
+ }
+}
+
+static void
+whenever_action()
+{
+ if (when_nf.code != W_NOTHING)
+ {
+ fprintf(yyout, "\nif (SQLCODE > 0) ");
+ print_action(&when_nf);
+ }
+ if (when_error.code != W_NOTHING)
+ {
+ fprintf(yyout, "\nif (SQLCODE < 0) ");
+ print_action(&when_error);
+ }
+ output_line_number();
+}
+
+/*
* Handling of the variables.
*/
@@ -176,28 +219,31 @@ dump_variables(struct arguments * list)
char * symbolname;
int indexsize;
enum ECPGttype type_enum;
+ struct when action;
}
%token <tagname> SQL_START SQL_SEMI SQL_STRING SQL_INTO
%token <tagname> SQL_BEGIN SQL_END SQL_DECLARE SQL_SECTION SQL_INCLUDE
%token <tagname> SQL_CONNECT SQL_OPEN SQL_EXECUTE SQL_IMMEDIATE
-%token <tagname> SQL_COMMIT SQL_ROLLBACK SQL_RELEASE SQL_WORK
+%token <tagname> SQL_COMMIT SQL_ROLLBACK SQL_RELEASE SQL_WORK SQL_WHENEVER
+%token <tagname> SQL_SQLERROR SQL_NOT_FOUND SQL_BREAK SQL_CONTINUE
+%token <tagname> SQL_DO SQL_GOTO SQL_SQLPRINT
-%token <tagname> S_SYMBOL S_LENGTH S_ANYTHING
+%token <tagname> S_SYMBOL S_LENGTH S_ANYTHING S_LABEL
%token <tagname> S_VARCHAR S_VARCHAR2
-%token <tagname> S_EXTERN S_STATIC S_AUTO S_CONST S_REGISTER S_STRUCT
+%token <tagname> S_EXTERN S_STATIC S_AUTO S_CONST S_REGISTER S_STRUCT S_SIGNED
%token <tagname> S_UNSIGNED S_SIGNED
%token <tagname> S_LONG S_SHORT S_INT S_CHAR S_FLOAT S_DOUBLE S_BOOL
-%token <tagname> '[' ']' ';' ',' '{' '}' '=' '*'
+%token <tagname> '[' ']' ';' ',' '{' '}' '=' '*' '(' ')'
%type <type> type type_detailed varchar_type simple_type array_type struct_type
-%type <symbolname> symbol
+%type <symbolname> symbol label
%type <tagname> maybe_storage_clause varchar_tag db_name
%type <type_enum> simple_tag
%type <indexsize> index length
+%type <action> action
%type <tagname> canything sqlanything both_anything vartext commit_release
-
%%
prog : statements;
@@ -211,6 +257,7 @@ statement : sqldeclaration
| sqlcommit
| sqlrollback
| sqlexecute
+ | sqlwhenever
| sqlstatement
| cthing
| blockstart
@@ -247,8 +294,18 @@ variable_declaration : type initializer ';' {
initializer : /*empty */
| '=' {fwrite(yytext, yyleng, 1, yyout);} vartext;
-vartext : both_anything {fwrite(yytext, yyleng, 1, yyout);}
- | vartext both_anything {fwrite(yytext, yyleng, 1, yyout);}
+vartext : /* empty */ {}
+ | vartext both_anything {
+ if (do_length == 0)
+ fwrite(yytext, yyleng, 1, yyout);
+ else
+ {
+ if (strlen(do_str) + yyleng + 1 >= do_length)
+ do_str = mm_realloc(do_str, do_length += yyleng);
+
+ strcat(do_str, yytext);
+ }
+}
symbol : S_SYMBOL {
char * name = (char *)malloc(yyleng + 1);
@@ -351,6 +408,7 @@ simple_tag : S_CHAR { $<type_enum>$ = ECPGt_char; }
maybe_storage_clause : S_EXTERN { fwrite(yytext, yyleng, 1, yyout); }
| S_STATIC { fwrite(yytext, yyleng, 1, yyout); }
+ | S_SIGNED { fwrite(yytext, yyleng, 1, yyout); }
| S_CONST { fwrite(yytext, yyleng, 1, yyout); }
| S_REGISTER { fwrite(yytext, yyleng, 1, yyout); }
| S_AUTO { fwrite(yytext, yyleng, 1, yyout); }
@@ -369,7 +427,7 @@ filename : cthing
sqlconnect : SQL_START SQL_CONNECT { fprintf(yyout, "ECPGconnect("); }
db_name
- SQL_SEMI { fprintf(yyout, ");"); output_line_number();}
+ SQL_SEMI { fprintf(yyout, ");"); whenever_action();}
db_name : SQL_STRING { fprintf(yyout, "\""); fwrite(yytext + 1, yyleng - 2, 1, yyout); fprintf(yyout, "\""); }
| ':' symbol { /* check if we have a char variabnle */
@@ -395,7 +453,7 @@ sqlgarbage : /* Empty */
sqlcommit : SQL_START commit_release SQL_SEMI {
fprintf(yyout, "ECPGcommit(__LINE__);");
- output_line_number();
+ whenever_action();
}
commit_release : SQL_COMMIT
@@ -404,7 +462,7 @@ commit_release : SQL_COMMIT
sqlrollback : SQL_START SQL_ROLLBACK SQL_SEMI {
fprintf(yyout, "ECPGrollback(__LINE__);");
- output_line_number();
+ whenever_action();
};
sqlexecute : SQL_START { /* Reset stack */
@@ -415,11 +473,59 @@ sqlexecute : SQL_START { /* Reset stack */
fprintf(yyout, "\", ");
dump_variables(argsinsert);
fprintf(yyout, "ECPGt_EOIT, ");
- dump_variables(argsresult);
+ /* dump_variables(argsresult); output variables must not exist here */
fprintf(yyout, "ECPGt_EORT );");
- output_line_number();
+ whenever_action();
};
+sqlwhenever : SQL_START SQL_WHENEVER SQL_SQLERROR action SQL_SEMI{
+ when_error = $<action>4;
+}
+ | SQL_START SQL_WHENEVER SQL_NOT_FOUND action SQL_SEMI{
+ when_nf = $<action>4;
+}
+
+action : SQL_BREAK {
+ $<action>$.code = W_BREAK;
+ $<action>$.str = NULL;
+}
+ | SQL_CONTINUE {
+ $<action>$.code = W_CONTINUE;
+ $<action>$.str = NULL;
+}
+ | SQL_SQLPRINT {
+ $<action>$.code = W_SQLPRINT;
+ $<action>$.str = NULL;
+}
+ | SQL_GOTO label {
+ $<action>$.code = W_GOTO;
+ $<action>$.str = $<symbolname>2;
+}
+ | SQL_GOTO symbol {
+ $<action>$.code = W_GOTO;
+ $<action>$.str = $<symbolname>2;
+}
+ | SQL_DO symbol '(' {
+ do_str = (char *) mm_alloc(do_length = strlen($<symbolname>2) + 4);
+ sprintf(do_str, "%s (", $<symbolname>2);
+} vartext ')' {
+ do_str[strlen(do_str)+1]='\0';
+ do_str[strlen(do_str)]=')';
+ $<action>$.code = W_DO;
+ $<action>$.str = do_str;
+ do_str = NULL;
+ do_length = 0;
+}
+
+label : S_LABEL {
+ char * name = (char *)malloc(yyleng + 1);
+
+ strncpy(name, yytext, yyleng);
+ name[yyleng] = '\0';
+
+ $<symbolname>$ = name;
+}
+
sqlstatement : SQL_START { /* Reset stack */
reset_variables();
fprintf(yyout, "ECPGdo(__LINE__, \"");
@@ -430,7 +536,7 @@ sqlstatement : SQL_START { /* Reset stack */
fprintf(yyout, "ECPGt_EOIT, ");
dump_variables(argsresult);
fprintf(yyout, "ECPGt_EORT );");
- output_line_number();
+ whenever_action();
};
sqlstatement_words : sqlstatement_word
@@ -478,9 +584,9 @@ both_anything : S_LENGTH | S_VARCHAR | S_VARCHAR2
| SQL_BEGIN | SQL_END
| SQL_DECLARE | SQL_SECTION
| SQL_INCLUDE
- | S_SYMBOL
+ | S_SYMBOL | S_LABEL
| S_STATIC | S_EXTERN | S_AUTO | S_CONST | S_REGISTER | S_STRUCT
- | '[' | ']' | ',' | '=' | '*'
+ | '[' | ']' | ',' | '=' | '*' | '(' | ')'
| S_ANYTHING;
blockstart : '{' {
@@ -495,6 +601,6 @@ blockend : '}' {
%%
static void yyerror(char * error)
{
- fprintf(stderr, "%s\n", error);
+ fprintf(stderr, "%s in line %d\n", error, yylineno);
exit(1);
}
diff --git a/src/interfaces/ecpg/preproc/type.c b/src/interfaces/ecpg/preproc/type.c
index ae6b0997da5..bac44a72ed3 100644
--- a/src/interfaces/ecpg/preproc/type.c
+++ b/src/interfaces/ecpg/preproc/type.c
@@ -18,6 +18,20 @@ void *mm_alloc(size_t size)
return (ptr);
}
+/* realloc + error check */
+void *mm_realloc(void * ptr, size_t size)
+{
+ ptr = realloc(ptr, size);
+
+ if (ptr == NULL)
+ {
+ fprintf(stderr, "Out of memory\n");
+ exit(1);
+ }
+
+ return (ptr);
+}
+
/* Constructors
Yes, I mostly write c++-code
*/
diff --git a/src/interfaces/ecpg/preproc/type.h b/src/interfaces/ecpg/preproc/type.h
index 73fa3804836..80a7266f9c7 100644
--- a/src/interfaces/ecpg/preproc/type.h
+++ b/src/interfaces/ecpg/preproc/type.h
@@ -51,3 +51,19 @@ struct ECPGtemp_type {
};
extern const char * ECPGtype_name(enum ECPGttype typ);
+
+/* some stuff for whenever statements */
+enum WHEN {
+ W_NOTHING,
+ W_CONTINUE,
+ W_BREAK,
+ W_SQLPRINT,
+ W_GOTO,
+ W_DO
+};
+
+struct when
+{
+ enum WHEN code;
+ char * str;
+};
diff --git a/src/interfaces/ecpg/test/test2.pgc b/src/interfaces/ecpg/test/test2.pgc
index 37533515c3d..9c25e63f948 100644
--- a/src/interfaces/ecpg/test/test2.pgc
+++ b/src/interfaces/ecpg/test/test2.pgc
@@ -2,10 +2,11 @@
exec sql include sqlca;
-#define SQLCODE sqlca.sqlcode
-
extern void ECPGdebug(int n, FILE *dbgs);
+exec sql whenever not found sqlprint;
+exec sql whenever sqlerror db_error(msg);
+
void
db_error (char *msg)
{
@@ -24,37 +25,32 @@ exec sql begin declare section;
} birth;
} personal;
exec sql end declare section;
+ char msg[128];
FILE *dbgs;
if ((dbgs = fopen("log", "w")) != NULL)
ECPGdebug(1, dbgs);
+ strcpy(msg, "connect");
exec sql connect 'mm';
- if (SQLCODE)
- db_error ("connect");
+ strcpy(msg, "declare");
exec sql declare cur cursor for
select name, born, age from meskes;
- if (SQLCODE) db_error ("declare");
exec sql open cur;
- if (SQLCODE)
- db_error ("open");
while (1) {
+ strcpy(msg, "fetch");
exec sql fetch in cur into :personal;
- if (SQLCODE)
- break;
printf ("%8.8s was born %d (age = %d)\n", personal.name.arr, personal.birth.born, personal.birth.age);
}
- if (SQLCODE < 0)
- db_error ("fetch");
-
+ strcpy(msg, "close");
exec sql close cur;
- if (SQLCODE) db_error ("close");
+
+ strcpy(msg, "commit");
exec sql commit;
- if (SQLCODE) db_error ("commit");
if (dbgs != NULL)
fclose(dbgs);