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GNOME Data Access 4 manual | ![]() |
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Top | Description |
#include <libgda/gda-statement-extra.h> struct GdaSqlRenderingContext; gchar * (*GdaSqlRenderingValue) (const GValue *value
,GdaSqlRenderingContext *context
,GError **error
); gchar * (*GdaSqlRenderingPSpecFunc) (GdaSqlParamSpec *pspec
,GdaSqlExpr *expr
,GdaSqlRenderingContext *context
,gboolean *is_default
,gboolean *is_null
,GError **error
); gchar * (*GdaSqlRenderingExpr) (GdaSqlExpr *expr
,GdaSqlRenderingContext *context
,gboolean *is_default
,gboolean *is_null
,GError **error
); gchar * (*GdaSqlRenderingFunc) (GdaSqlAnyPart *node
,GdaSqlRenderingContext *context
,GError **error
); gchar * gda_statement_to_sql_real (GdaStatement *stmt
,GdaSqlRenderingContext *context
,GError **error
);
struct GdaSqlRenderingContext { GdaStatementSqlFlag flags; GdaSet *params; GSList *params_used; GdaServerProvider *provider; /* may be NULL */ GdaConnection *cnc; /* may be NULL */ /* rendering functions */ GdaSqlRenderingValue render_value; GdaSqlRenderingPSpecFunc render_param_spec; GdaSqlRenderingExpr render_expr; GdaSqlRenderingFunc render_unknown; GdaSqlRenderingFunc render_begin; GdaSqlRenderingFunc render_rollback; GdaSqlRenderingFunc render_commit; GdaSqlRenderingFunc render_savepoint; GdaSqlRenderingFunc render_rollback_savepoint; GdaSqlRenderingFunc render_delete_savepoint; GdaSqlRenderingFunc render_select; GdaSqlRenderingFunc render_insert; GdaSqlRenderingFunc render_delete; GdaSqlRenderingFunc render_update; GdaSqlRenderingFunc render_compound; GdaSqlRenderingFunc render_field; GdaSqlRenderingFunc render_table; GdaSqlRenderingFunc render_function; GdaSqlRenderingFunc render_operation; GdaSqlRenderingFunc render_case; GdaSqlRenderingFunc render_select_field; GdaSqlRenderingFunc render_select_target; GdaSqlRenderingFunc render_select_join; GdaSqlRenderingFunc render_select_from; GdaSqlRenderingFunc render_select_order; /* Padding for future expansion */ void (*_gda_reserved1) (void); void (*_gda_reserved2) (void); void (*_gda_reserved3) (void); void (*_gda_reserved4) (void); void (*_gda_reserved5) (void); void (*_gda_reserved6) (void); void (*_gda_reserved7) (void); void (*_gda_reserved8) (void); };
gchar * (*GdaSqlRenderingValue) (const GValue *value
,GdaSqlRenderingContext *context
,GError **error
);
gchar * (*GdaSqlRenderingPSpecFunc) (GdaSqlParamSpec *pspec
,GdaSqlExpr *expr
,GdaSqlRenderingContext *context
,gboolean *is_default
,gboolean *is_null
,GError **error
);
gchar * (*GdaSqlRenderingExpr) (GdaSqlExpr *expr
,GdaSqlRenderingContext *context
,gboolean *is_default
,gboolean *is_null
,GError **error
);
gchar * (*GdaSqlRenderingFunc) (GdaSqlAnyPart *node
,GdaSqlRenderingContext *context
,GError **error
);
gchar * gda_statement_to_sql_real (GdaStatement *stmt
,GdaSqlRenderingContext *context
,GError **error
);
Renders stmt
to its SQL representation, using context
to specify how each part of stmt
must
be rendered. This function is mainly used by database provider's implementations which require
to specialize some aspects of SQL rendering to be adapted to the database,'s own SQL dialect
(for example SQLite rewrites the 'FALSE' and 'TRUE' literals as '0' and 'NOT 0').
|
a GdaStatement object |
|
a GdaSqlRenderingContext context |
|
a place to store errors, or NULL
|
Returns : |
a new string, or NULL if an error occurred |