-
. . 24 3. Data Types and Subtypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.1. Integer Data Types . . . Floating-Point Data Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.2.1. Approximate Floating-Point Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.3. Fixed-Point Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 码力 |
778 页 |
3.43 MB
| 1 年前 3
-
firebird. This limits the damage in case of malfunctioning (by hack or otherwise). No Services Manager. Tasks like backup/ restore, user management, stats etc. have to be performed locally using the client Firebird. Features a Services Manager enabling you to perform certain tasks (backup/restore, user management, stats, etc.) programmatically. You can connect to the Services Manager over the network and thus architecture later; your applications and databases will keep functioning (except if they call the Services Manager and you switch to Classic). Superserver download packages start with FirebirdSS, Classic packages
0 码力 |
26 页 |
179.05 KB
| 1 年前 3
-
............................................................................... 366 ON EXTERNAL [DATA SOURCE] ........................................................................ 366 Особенности Зарезервированные и ключевые слова; • Типы и подтипы данных; • Операторы DDL (Data Definition Language — язык создания данных); • Операторы DML (Data Manipulation Language — язык обращения с данными); • Операторы управления NUMERIC(4) SMALLINT NUMERIC(4,2) SMALLINT (data * 102) NUMERIC(10,4) DOUBLE PRECISION в 1-ом диалекте BIGINT в 3-ем диалекте (data * 104) Внимание Всегда надо помнить
0 码力 |
719 页 |
3.98 MB
| 1 年前 3
-
onwards. -M[ETA_
DATA] This switch causes your
data to be ignored and not backed up or restored. In a backup, only the database meta
data are backed up. When used in a restore, any
data in the dump file creating database clones which are required to contain only the tables, indices etc but none of the
data. -PAS[SWORD]
Supplies the password for the username specified above. This need not be file -CO[NVERT] backup external files as tables -E[XPAND] no data compression -FA[CTOR] blocking factor -G[ARBAGE_COLLECT) inhibit garbage 0 码力 |
34 页 |
191.73 KB
| 1 年前 3
-
. . 22 3. Data Types and Subtypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.1. Integer Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.2. Floating-Point Data Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3. Fixed-Point Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 码力 |
521 页 |
2.30 MB
| 1 年前 3
-
.............................................................................. 24 Protecting your data ................................................................................................. installs, consult the appropriate platform documentation for instructions about using RPM Package Manager. In most distributions you will have the choice of performing the install from a command shell or to upgrade old security databases. If the error message starts with “Cannot attach to services manager”, the server may not be running at all. In that case, go back to Testing your installation and fix
0 码力 |
40 页 |
218.42 KB
| 1 年前 3
-
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 6. Data Manipulation-Statements (DML) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . gespeichert als INTEGER (exact data) DECIMAL(4,2) INTEGER (data * 102) DECIMAL(10,4) (Dialekt 1) DOUBLE PRECISION (Dialekt 3) BIGINT (data * 104) 3.4. Datentypen für Datum Typen "DATE", "TIME" und "TIMESTAMP". Der SQL-Standard ruft diese Datetime- Literale auf. Syntax <data_type> 'date_literal_string' Beispiel -- 1 UPDATE PEOPLE SET AGECAT = 'SENIOR' WHERE BIRTHDATE
0 码力 |
701 页 |
3.12 MB
| 1 年前 3
-
error_updating_sec_db An error occurred while updating the security database. -103 335544571 dsql_constant_err Data type for constant unknown -104 336003075 dsql_transitional_numeric Precision 10 to 18 changed from (expected %ld, encountered %ld) -171 335544618 return_mode_err Return mode by value not allowed for this data type -172 335544438 funnotdef Function %s is not defined -203 335544708 dyn_fld_ambiguous Ambiguous 335544568 text_subtype Implementation of text subtype %d not located. -204 335544573 dsql_datatype_err Data type unknown -204 335544580 dsql_relation_err Table unknown -204 335544581 dsql_procedure_err Procedure
0 码力 |
26 页 |
157.59 KB
| 1 年前 3
-
while updating the security Firebird 2.1 Error Codes database. -103 335544571 dsql_constant_err Data type for constant unknown -104 336003075 dsql_transitional_numeric Precision 10 to 18 changed from -171 335544618 return_mode_err Return mode by value not allowed for this data type -171 335544873 array_max_dimensions Array data type can use up to @1 dimensions -172 335544438 funnotdef Function @1 is 335544568 text_subtype Implementation of text subtype @1 not located. -204 335544573 dsql_datatype_err Data type unknown -204 335544580 dsql_relation_err Table unknown -204 335544581 dsql_procedure_err Procedure
0 码力 |
31 页 |
103.24 KB
| 1 年前 3
-
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7. Cache
Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a single file database is simply the database name and for multi-file databases, it is the first
data file added. Coming up in the remainder of this manual, we will discuss the following: • Command
-co(mmit) commit transaction -ca(che) shutdown cache manager -fu(ll) validate record fragments (-v) -fo(rce_shutdown) force database shutdown 0 码力 |
44 页 |
247.13 KB
| 1 年前 3