 Firebird 2.5 Language Reference1) The data type is available in Dialect 3 only BLOB Varying The size of a BLOB segment is limited to 64K. The maximum size of a BLOB field is 4 GB A data type of a dynamically variable size character sets UTF8 and UNICODE_FSS. UTF8 comes with collations for many languages. UNICODE_FSS is more limited and is used mainly by Firebird internally for storing metadata. Keep in mind that one UTF8 character character columns that use a non-standard collation sequence: the length of an indexed field is limited to 252 bytes with no COLLATE specified or 84 bytes if COLLATE is specified. Multi-byte character0 码力 | 521 页 | 2.30 MB | 1 年前3 Firebird 2.5 Language Reference1) The data type is available in Dialect 3 only BLOB Varying The size of a BLOB segment is limited to 64K. The maximum size of a BLOB field is 4 GB A data type of a dynamically variable size character sets UTF8 and UNICODE_FSS. UTF8 comes with collations for many languages. UNICODE_FSS is more limited and is used mainly by Firebird internally for storing metadata. Keep in mind that one UTF8 character character columns that use a non-standard collation sequence: the length of an indexed field is limited to 252 bytes with no COLLATE specified or 84 bytes if COLLATE is specified. Multi-byte character0 码力 | 521 页 | 2.30 MB | 1 年前3
 firebird 40 language referencecharacters is not specified, 1 is used by default. BLOB Varying The size of a BLOB segment is limited to 64K. The maximum size of a BLOB field is 4 GB A data type of variable size for storing large AVG, MAX and MIN work with DECFLOAT data, as do all the statistics aggregates (including but not limited to STDDEV or CORR). Special Functions for DECFLOAT Firebird supports four functions, designed to character sets UTF8 and UNICODE_FSS. UTF8 comes with collations for many languages. UNICODE_FSS is more limited and is used mainly by Firebird internally for storing metadata. Keep in mind that one UTF8 character0 码力 | 778 页 | 3.43 MB | 1 年前3 firebird 40 language referencecharacters is not specified, 1 is used by default. BLOB Varying The size of a BLOB segment is limited to 64K. The maximum size of a BLOB field is 4 GB A data type of variable size for storing large AVG, MAX and MIN work with DECFLOAT data, as do all the statistics aggregates (including but not limited to STDDEV or CORR). Special Functions for DECFLOAT Firebird supports four functions, designed to character sets UTF8 and UNICODE_FSS. UTF8 comes with collations for many languages. UNICODE_FSS is more limited and is used mainly by Firebird internally for storing metadata. Keep in mind that one UTF8 character0 码力 | 778 页 | 3.43 MB | 1 年前3
 Firebird File and Metadata Securityknown, it will not help the person because SYSDBA does not have access anyway. Some have reported limited success in this respect by creating an SQL role name of SYSDBA and making sure it does not have has been some suggestion about allowing the SYSDBA user name to be changed. This may offer some limited protection against brute-force network attacks against the SYSDBA password, since such attacks would login and log off to call user functions to prevent or deny access. Such features may offer some limited use for closed source systems, where the obscurity of the implementation helps to hide exactly how0 码力 | 19 页 | 115.27 KB | 1 年前3 Firebird File and Metadata Securityknown, it will not help the person because SYSDBA does not have access anyway. Some have reported limited success in this respect by creating an SQL role name of SYSDBA and making sure it does not have has been some suggestion about allowing the SYSDBA user name to be changed. This may offer some limited protection against brute-force network attacks against the SYSDBA password, since such attacks would login and log off to call user functions to prevent or deny access. Such features may offer some limited use for closed source systems, where the obscurity of the implementation helps to hide exactly how0 码力 | 19 页 | 115.27 KB | 1 年前3
 Firebird 2.1.5 Installationrequest. All of these connection threads share a common page cache. On 32-bit systems, Superserver is limited to using a maximum of 2 GB of RAM. • In discussions, Classic and Superserver are often referred from time to time, to enable legacy applications to continue “working around” legacy bugs for a limited time. Such parameters are removed eventually. Ensure that you read the relevant chapter in each release database files anywhere on the POSIX filesystem. For security reasons, the service should have a more limited ability to read/delete and create files. While the new configuration is better from a security perspective0 码力 | 46 页 | 217.89 KB | 1 年前3 Firebird 2.1.5 Installationrequest. All of these connection threads share a common page cache. On 32-bit systems, Superserver is limited to using a maximum of 2 GB of RAM. • In discussions, Classic and Superserver are often referred from time to time, to enable legacy applications to continue “working around” legacy bugs for a limited time. Such parameters are removed eventually. Ensure that you read the relevant chapter in each release database files anywhere on the POSIX filesystem. For security reasons, the service should have a more limited ability to read/delete and create files. While the new configuration is better from a security perspective0 码力 | 46 页 | 217.89 KB | 1 年前3
 Firebird Generator Guide: A guide on how and when to use generators in Firebirddatabase? Since Firebird version 1.0, the number of generators you can have in a single database is limited only by the maximum assignable ID in the RDB$GENERATORS system table. Being a SMALLINT, this maximum page was used to store the generator values. Therefore, the number of available generators was limited by the page size of the database. The following table lists how many generators — including system0 码力 | 20 页 | 169.00 KB | 1 年前3 Firebird Generator Guide: A guide on how and when to use generators in Firebirddatabase? Since Firebird version 1.0, the number of generators you can have in a single database is limited only by the maximum assignable ID in the RDB$GENERATORS system table. Being a SMALLINT, this maximum page was used to store the generator values. Therefore, the number of available generators was limited by the page size of the database. The following table lists how many generators — including system0 码力 | 20 页 | 169.00 KB | 1 年前3
 firebird gsplitchunks to be joined together and used to restore a database. Up until Interbase 5.0, dump files were limited to 2 Gb by the gbak utility itself — even if running on a system which allowed files to be 4 Gb0 码力 | 10 页 | 103.73 KB | 1 年前3 firebird gsplitchunks to be joined together and used to restore a database. Up until Interbase 5.0, dump files were limited to 2 Gb by the gbak utility itself — even if running on a system which allowed files to be 4 Gb0 码力 | 10 页 | 103.73 KB | 1 年前3
 firebird wire protocolread of the response. Chapter 1. Introduction 3 Chapter 2. Responses The wire protocol has a limited set of responses. Some operations have a specific response, which is described together with the0 码力 | 40 页 | 213.15 KB | 1 年前3 firebird wire protocolread of the response. Chapter 1. Introduction 3 Chapter 2. Responses The wire protocol has a limited set of responses. Some operations have a specific response, which is described together with the0 码力 | 40 页 | 213.15 KB | 1 年前3
 Firebird 1.0 QuickStartenforced double-quoting will remain mandatory. Firebird does permit a slight relaxation under a very limited set of conditions. If the identifier which was defined in double-quotes: 1. was defined as all upper-case0 码力 | 26 页 | 179.05 KB | 1 年前3 Firebird 1.0 QuickStartenforced double-quoting will remain mandatory. Firebird does permit a slight relaxation under a very limited set of conditions. If the identifier which was defined in double-quotes: 1. was defined as all upper-case0 码力 | 26 页 | 179.05 KB | 1 年前3
 firebird 5 quickstartguideenforced double-quoting will remain mandatory. Firebird does permit a slight relaxation under a very limited set of conditions. If the identifier which was defined in double-quotes: 1. is defined as all upper-case0 码力 | 49 页 | 396.21 KB | 1 年前3 firebird 5 quickstartguideenforced double-quoting will remain mandatory. Firebird does permit a slight relaxation under a very limited set of conditions. If the identifier which was defined in double-quotes: 1. is defined as all upper-case0 码力 | 49 页 | 396.21 KB | 1 年前3
 Firebird 2 QuickStartenforced double-quoting will remain mandatory. Firebird does permit a slight relaxation under a very limited set of conditions. If the identifier which was defined in double-quotes: 1. was defined as all upper-case0 码力 | 40 页 | 218.42 KB | 1 年前3 Firebird 2 QuickStartenforced double-quoting will remain mandatory. Firebird does permit a slight relaxation under a very limited set of conditions. If the identifier which was defined in double-quotes: 1. was defined as all upper-case0 码力 | 40 页 | 218.42 KB | 1 年前3
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