7 #include <dballe/core/error.h>
8 #include <dballe/transaction.h>
23 #define TRACE(...) fprintf(stderr, __VA_ARGS__)
24 #define IFTRACE if (1)
27 #define TRACE(...) do { } while (0)
29 #define IFTRACE if (0)
56 const char* format_server_type(ServerType type);
64 unsigned profile_query_count = 0;
78 const std::string& get_url()
const {
return url; }
86 virtual std::unique_ptr<Transaction>
transaction() = 0;
89 virtual bool has_table(
const std::string& name) = 0;
96 virtual std::string
get_setting(
const std::string& key) = 0;
103 virtual void set_setting(
const std::string& key,
const std::string& value) = 0;
112 virtual void execute(
const std::string& query) = 0;
115 virtual void explain(
const std::string& query, FILE* out) = 0;
121 static std::unique_ptr<Connection>
create_from_url(
const std::string& url);
142 virtual void lock_table(
const char* name) = 0;
A RAII transaction interface.
Definition: transaction.h:15
ServerType server_type
Type of SQL server we are connected to.
Definition: sql.h:73
Forward declarations for public dballe/sql names.
virtual void set_setting(const std::string &key, const std::string &value)=0
Set a value in the settings table.
virtual void drop_settings()=0
Drop the settings table.
virtual std::unique_ptr< Transaction > transaction()=0
Begin a transaction.
virtual void add_datetime(Querybuf &qb, const Datetime &dt) const
Format a datetime and add it to the querybuf.
A RAII transaction interface.
Definition: sql.h:133
virtual std::string get_setting(const std::string &key)=0
Get a value from the settings table.
Date and time.
Definition: types.h:158
virtual bool has_table(const std::string &name)=0
Check if the database contains a table.
virtual void execute(const std::string &query)=0
Execute a query without reading its results.
virtual void explain(const std::string &query, FILE *out)=0
Format and print the EXPLAIN output for the query to the given file.
virtual void lock_table(const char *name)=0
Get an exclusive lock on the given table until the end of the transaction.
String buffer for composing database queries.
Definition: querybuf.h:15
static std::unique_ptr< Connection > create_from_url(const char *url)
Create a new connection from a URL.