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https://dev.mysql.com/doc/refman/9.7/en/create-spatial-reference-system.html
srs_attribute: { NAME 'srs_name' | DEFINITION 'definition' | ORGANIZATION 'org_name' IDENTIFIED BY org_id | DESCRIPTION 'description' } srid, org_id: 32-bit unsigned integer This statement creates a spatial reference system (SRS) definition and ...
https://dev.mysql.com/doc/refman/9.7/en/create-tablespace.html
The unique file name is a 128 bit UUID formatted into five groups of hexadecimal numbers separated by dashes (aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee). On 32-bit systems, the maximum supported value for INITIAL_SIZE is 4294967296 (4 GB). The precise ...
https://dev.mysql.com/doc/refman/9.7/en/drop-spatial-reference-system.html
DROP SPATIAL REFERENCE SYSTEM [IF EXISTS] srid srid: 32-bit unsigned integer This statement removes a spatial reference system (SRS) definition from the data dictionary. To identify which column or columns use the SRID, use this query: SELECT * ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-mysql-cluster.html
The minimum connectivity requirements for NDB Cluster include a typical 100-megabit Ethernet network or the equivalent. The purpose of the two data nodes is to provide redundancy; the management node must run on a separate machine to guarantee ...
https://dev.mysql.com/doc/refman/9.7/en/installing-source-distribution.html
For example, the following commands configure MySQL for 32-bit or 64-bit builds, respectively: $> cmake .. To install MySQL from a standard source distribution: Verify that your system satisfies the tool requirements listed at Section 2.8.2, ...
https://dev.mysql.com/doc/refman/9.7/en/json-attribute-functions.html
The functions in this section return attributes of JSON values. An error occurs if the argument is not a valid JSON document. An empty array, empty object, or scalar value has depth 1. A nonempty array containing only elements of depth 1 or ...
https://dev.mysql.com/doc/refman/9.7/en/json.html
BLOB BIT OPAQUE DATETIME TIME DATE BOOLEAN ARRAY OBJECT STRING INTEGER, DOUBLE NULL For JSON values of the same precedence, the comparison rules are type specific: BLOB The first N bytes of the two values are compared, where N is the number of bytes ...The JSON data type provides these advantages over storing JSON-format strings in a string column: Automatic validation of JSON documents stored in JSON ...
https://dev.mysql.com/doc/refman/9.7/en/legacy-hashing-component.html
The component performs the following for the MD5 encryption algorithm: Calculates an MD5 128-bit checksum for the string. The component performs the following for the SHA-1 encryption algorithm: Calculates an SHA-1 160-bit checksum for the string, ... Note Exploits for the MD5 and SHA-1 algorithms have become ...
https://dev.mysql.com/doc/refman/9.7/en/linux-installation-debian.html
Oracle provides Debian packages for installing MySQL on Debian or Debian-like Linux systems. The packages are available through two different channels: The MySQL APT Repository. This is the preferred method for installing MySQL on Debian-like ...
https://dev.mysql.com/doc/refman/9.7/en/memory-storage-engine.html
sizeof(char*) is 4 on 32-bit machines and 8 on 64-bit machines. The MEMORY storage engine (formerly known as HEAP) creates special-purpose tables with contents that are stored in memory. Because the data is vulnerable to crashes, hardware issues, ...