grammarly synonyms

oracle| Data | database first, some concepts of relational databases 　　 1, the value of the primary key can not be changed generally 　　 2. Foreign key: A field that points to another table or to the primary key or unique key of this table. The value of a foreign key must be the same as a primary key, or it will be empty. 　　 3. Database-like: tables, views, sequences, indexes, synonyms, programs (processes, functions, SQL and Pl/sql data) 4, SQL c

mentioned earlier, this component provides spelling checker and dictionary functionality. First, let's look at how to return a series of synonyms for a given word. This uses the Lookupsynonym method, which requires a parameter, which is a word that needs to look for synonyms. After execution, the spelling checker objects collect related words to the collection object Synonymwords. Execute the following cod

and coffee. The varchar field occupies a 2x2+6=10 byte of storage space, while the nvarchar field occupies 8x2=16 bytes of storage space. If the field value is only English can choose varchar, while the field value exists more double-byte (Chinese, Korean, etc.) characters with nvarchar varchar[(N)]A variable length of n bytes and non-Unicode character data. n must be a numeric value between 1 and 8,000. The actual length of the byte that the storage size is the input data, not the N bytes. Th

cannot update the data in B1 because the trigger in A1 is using B. This way to refer to the. In this case, you must put all B.. All replaced by B1 ... In this way, if there are more places to cite, it is a disaster.The use of synonyms synonym can solve this problem well, first of all about the role of synonyms (synonym).synonym : Defines a string name that is used instead of a meaningful reference object.I

Tags: OCA must rom off system rtx syn change fromSynonyms: A synonym is an alias to another data object, the synonym is dependent on its target object, and the synonym becomes invalid if the target object is changed or deleted. Synonyms are not a substitute for the privileges of database objects, that is, the object with the schema is queried, executed, deleted, and so on. Permissions: To create a private synonym in your own schema, you must have the

customer has a data center in both places, three sets of systems have a large number of business to use other system data, so here use publish subscription on time to the other system to publish data to a database in the system, and use synonyms to point to the data of the subscription. This structure reduces the performance cost of using a linked server to access across instances and even across rooms! and multi-data subscription to a plurality of r

to have the permissions for creating a sequence syntax for creating sequences: create sequence sequence_name --Create sequence name [increment by INCREMENT ] --increments the sequence value is N if n is a positive number increment, if the negative is decremented by default is 1 [start with START ] [maxvaluen| Nomaxvalue] --maximum [minvalue N|nominvalue] --minimum [ cachen| Nocache]--pre-allocated and deposited into memory [cycle | NOCYCLE]; --loop/no loop Two pseudo-c

assigns a new zone to the segment. Zones cannot exist across data files, only in one data file. C. Paragraph: a segment is a logical storage structure that constitutes a table space, consisting of a set of regions. According to the characteristics of the data stored in the segment, the segments are divided into four types, namely data segments, index segments, fallback segments, and temporary segments. D. The tablespace is the largest logical unit in the database, and an Oracle database contain

spatial use of a hash cluster Scenario 167: Estimating the amount of space required for a hash cluster Scenario 168: Modifying and deleting a hash cluster Scenario 169: Using the Dba_cluster_hash_expressions view to view the hash function SELECT * from Dba_cluster_hash_expressions; Scenario 170: Creating a sequence CREATE SEQUENCE Hrman. emp_sMINVALUE 1NomaxvalueSTART with 1INCREMENT by 1NocycleCACHE 20; Scenario 171: Modifying a sequence ALTER SEQUENCE Hrman. emp_sMAXVALUE 10000; Scenario 172:

Most customers have their own database servers to manage some of their key data. So what if we need to use this data in our project and the customer is not allowed to insert that data into our project database server? One solution is to create a synonym for some tables or views on the Project database server based on the customer's critical data server. Let me introduce the process I made in the project based on how the remote server view creates synonyms