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2. What is the difference between a schema and a table and a...

   stackoverflow.com/questions/298739

   A relation schema is the logical definition of a table - it defines what the name of the table is, and what the name and type of each column is. It's like a plan or a blueprint. A database schema is the collection of relation schemas for a whole database. A table is a structure with a bunch of rows (aka "tuples"), each of which has the ...

3. How to select a schema in postgres when using psql?

   stackoverflow.com/questions/34098326

   Use schema name with period in psql command to obtain information about this schema. Setup: test=# create schema test_schema; CREATE SCHEMA test=# create table test_schema.test_table (id int); CREATE TABLE test=# create table test_schema.test_table_2 (id int); CREATE TABLE Show list of relations in test_schema: test=# \dt test_schema.

4. How to check the schema of DataFrame? - Stack Overflow

   stackoverflow.com/questions/52760911

   25. You can get the schema of a dataframe with the schema method. Define a castColumn method. df.withColumn(colName, df.col(colName).cast(randomDataType)) Then apply this method to all the columns you need to cast. First, get an Array of tuples with the colName and the targeted dataType.

5. How do I list all tables in a schema in Oracle SQL?

   stackoverflow.com/questions/2247310

   To see all tables in another schema, you need to have one or more of the following system privileges: SELECT ANY DICTIONARY. (SELECT | INSERT | UPDATE | DELETE) ANY TABLE. or the big-hammer, the DBA role. With any of those, you can select: SELECT DISTINCT OWNER, OBJECT_NAME. FROM DBA_OBJECTS. WHERE OBJECT_TYPE = 'TABLE'.

6. sql server - set default schema for a sql query - Stack Overflow

   stackoverflow.com/questions/4942023

   Very old question, but since google led me here I'll add a solution that I found useful: Step 1. Create a user for each schema you need to be able to use. E.g. "user_myschema". Step 2. Use EXECUTE AS to execute the SQL statements as the required schema user. Step 3. Use REVERT to switch back to the original user.

7. Query to return database, schema, table, column for all databases

   stackoverflow.com/questions/54993953

   Thanks. I'm aware of the INFORMATION_SCHEMA views. I'm looking for a query that will return DatabaseName, SchemaName, TableName, ColumnName, ColumnType for the entire server, i.e. all databases, tables, etc. Alternatively, a query where I specify a database, like SELECT * FROM WHATEVER JOIN BLAH WHERE db_id = DB_ID('master').

8. java - Using @Schema(allowableValues=) for enum param using...

   stackoverflow.com/questions/62677965

   Let's assume your request is defined in the Request class and your request attribute is day. So what you can easily do is add swagger-ui annotation @Schema as follows. import io.swagger.v3.oas.annotations.media.Schema; class Request {. @Schema(type = "string", allowableValues = { "Monday", "Sunday" }) String day; }

9. How do I show the schema of a table in a MySQL database?

   stackoverflow.com/questions/1498777

   SHOW CREATE TABLE. The SHOW CREATE TABLE statement can be used to retrieve the CREATE TABLE statement to reproduce this table. For example: SHOW CREATE TABLE yourTable; Or with a prefixed database name: SHOW CREATE TABLE yourDatabase.yourTable; This will produce a single row with to columns, the table name and the CREATE STATEMENT.

10. Change database schema used by Spring Boot - Stack Overflow

    stackoverflow.com/questions/24278659

    Setting spring.jpa.properties.hibernate.default_schema means Hibernate will generate SQL with each object qualified by a schema name (unless already qualified explicitly). Therefore, it will be irrelevant to set a (default) schema name on the JDBC connection itself (i.e. via Hikari). You can say that the two are alternatives.

11. Oracle SQL Query for listing all Schemas in a DB

    stackoverflow.com/questions/4833459

    Most likely, you want. SELECT username. FROM dba_users. That will show you all the users in the system (and thus all the potential schemas). If your definition of "schema" allows for a schema to be empty, that's what you want. However, there can be a semantic distinction where people only want to call something a schema if it actually owns at ...