Revision 2728
Added by sgarg about 19 years ago
| src/edu/ucsb/nceas/dbadapter/PostgresqlAdapter.java | ||
|---|---|---|
| 101 | 101 |
} |
| 102 | 102 |
|
| 103 | 103 |
/** |
| 104 |
* PostgreSQL's syntax for doing a left join |
|
| 105 |
* Add 'a.' in front of the fields for first table and |
|
| 106 |
* 'b.' in front of the fields for the second table |
|
| 107 |
* |
|
| 108 |
* @param selectFields fields that you want to be selected |
|
| 109 |
* @param tableA first table in the join |
|
| 110 |
* @param tableB second table in the join |
|
| 111 |
* @param joinCriteria the criteria based on which the join will be made |
|
| 112 |
* @param nonJoinCriteria all other criterias |
|
| 113 |
* @return return the string for teh select query |
|
| 114 |
*/ |
|
| 115 |
public String getLeftJoinQuery(String selectFields, String tableA, |
|
| 116 |
String tableB, String joinCriteria, String nonJoinCriteria){
|
|
| 117 |
|
|
| 118 |
return "SELECT " + selectFields + " FROM " + tableA + " a LEFT JOIN " |
|
| 119 |
+ tableB + " b ON " + joinCriteria + " WHERE ("
|
|
| 120 |
+ nonJoinCriteria +")"; |
|
| 121 |
} |
|
| 122 |
|
|
| 123 |
/** |
|
| 104 | 124 |
* Return a hard code string to get xml_document list in timed replcation |
| 105 | 125 |
*/ |
| 106 | 126 |
public String getReplicationDocumentListSQL() |
| src/edu/ucsb/nceas/dbadapter/OracleAdapter.java | ||
|---|---|---|
| 98 | 98 |
|
| 99 | 99 |
return "'"; |
| 100 | 100 |
} |
| 101 |
|
|
| 102 |
/** |
|
| 103 |
* The Oracles's syntax for doing a left join |
|
| 104 |
* Add 'a.' in front of the fields for first table and |
|
| 105 |
* 'b.' in front of the fields for the second table |
|
| 106 |
* |
|
| 107 |
* @param selectFields fields that you want to be selected |
|
| 108 |
* @param tableA first table in the join |
|
| 109 |
* @param tableB second table in the join |
|
| 110 |
* @param joinCriteria the criteria based on which the join will be made |
|
| 111 |
* @param nonJoinCriteria all other criterias |
|
| 112 |
* @return return the string for teh select query |
|
| 113 |
*/ |
|
| 114 |
public String getLeftJoinQuery(String selectFields, String tableA, |
|
| 115 |
String tableB, String joinCriteria, String nonJoinCriteria){
|
|
| 116 |
|
|
| 117 |
return "SELECT " + selectFields + " FROM " + tableA + " a, " |
|
| 118 |
+ tableB + " b WHERE " + joinCriteria + "(+) " + " AND ("
|
|
| 119 |
+ nonJoinCriteria +")"; |
|
| 120 |
} |
|
| 101 | 121 |
|
| 102 | 122 |
|
| 103 | 123 |
/** |
| src/edu/ucsb/nceas/dbadapter/SqlserverAdapter.java | ||
|---|---|---|
| 107 | 107 |
} |
| 108 | 108 |
|
| 109 | 109 |
/** |
| 110 |
* MSSQL's syntax for doing a left join |
|
| 111 |
* Add 'a.' in front of the fields for first table and |
|
| 112 |
* 'b.' in front of the fields for the second table |
|
| 113 |
* |
|
| 114 |
* @param selectFields fields that you want to be selected |
|
| 115 |
* @param tableA first table in the join |
|
| 116 |
* @param tableB second table in the join |
|
| 117 |
* @param joinCriteria the criteria based on which the join will be made |
|
| 118 |
* @param nonJoinCriteria all other criterias |
|
| 119 |
* @return return the string for teh select query |
|
| 120 |
*/ |
|
| 121 |
public String getLeftJoinQuery(String selectFields, String tableA, |
|
| 122 |
String tableB, String joinCriteria, String nonJoinCriteria){
|
|
| 123 |
|
|
| 124 |
return "SELECT " + selectFields + " FROM " + tableA + " a LEFT JOIN " |
|
| 125 |
+ tableB + " b ON " + joinCriteria + " WHERE ("
|
|
| 126 |
+ nonJoinCriteria +")"; |
|
| 127 |
} |
|
| 128 |
|
|
| 129 |
/** |
|
| 110 | 130 |
* Return a hard code string to get xml_document list in timed replcation |
| 111 | 131 |
*/ |
| 112 | 132 |
public String getReplicationDocumentListSQL() |
| ... | ... | |
| 114 | 134 |
String sql ="select a.docid, a.rev, a.doctype from ( xml_documents a left outer join xml_revisions b on (a.docid=b.docid and a.rev<=b.rev)) where b.docid is null "; |
| 115 | 135 |
return sql; |
| 116 | 136 |
} |
| 117 |
|
|
| 118 | 137 |
} |
| 119 | 138 |
|
| src/edu/ucsb/nceas/dbadapter/AbstractDatabase.java | ||
|---|---|---|
| 94 | 94 |
|
| 95 | 95 |
|
| 96 | 96 |
/** |
| 97 |
* Syntax for doing a left join |
|
| 98 |
* Add 'a.' in front of the fields for first table and |
|
| 99 |
* 'b.' in front of the fields for the second table |
|
| 100 |
* |
|
| 101 |
* @param selectFields fields that you want to be selected |
|
| 102 |
* @param tableA first table in the join |
|
| 103 |
* @param tableB second table in the join |
|
| 104 |
* @param joinCriteria the criteria based on which the join will be made |
|
| 105 |
* @param nonJoinCriteria all other criterias |
|
| 106 |
* @return return the string for teh select query |
|
| 107 |
*/ |
|
| 108 |
public abstract String getLeftJoinQuery(String selectFields, String tableA, |
|
| 109 |
String tableB, String joinCriteria, String nonJoinCriteria); |
|
| 110 |
|
|
| 111 |
/** |
|
| 97 | 112 |
* Instantiate a class using the name of the class at runtime |
| 98 | 113 |
* |
| 99 | 114 |
* @param className the fully qualified name of the class to instantiate |
Also available in: Unified diff
New function which returns the formatted left join query. This is required as Oracle and postgres have different left join syntax